diff options
Diffstat (limited to 'util/x86emu/x86_interrupts.c')
-rw-r--r-- | util/x86emu/x86_interrupts.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/util/x86emu/x86_interrupts.c b/util/x86emu/x86_interrupts.c deleted file mode 100644 index 95964f89f2..0000000000 --- a/util/x86emu/x86_interrupts.c +++ /dev/null @@ -1,228 +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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#include <string.h> -#include <console/console.h> -#include <arch/io.h> -#include <arch/registers.h> - -enum { - PCIBIOS_CHECK = 0xb101, - PCIBIOS_FINDDEV = 0xb102, - PCIBIOS_READCONFBYTE = 0xb108, - PCIBIOS_READCONFWORD = 0xb109, - PCIBIOS_READCONFDWORD = 0xb10a, - PCIBIOS_WRITECONFBYTE = 0xb10b, - PCIBIOS_WRITECONFWORD = 0xb10c, - PCIBIOS_WRITECONFDWORD = 0xb10d -}; - -// errors go in AH. Just set these up so that word assigns -// will work. KISS. -enum { - PCIBIOS_SUCCESSFUL = 0x0000, - PCIBIOS_UNSUPPORTED = 0x8100, - PCIBIOS_BADVENDOR = 0x8300, - PCIBIOS_NODEV = 0x8600, - PCIBIOS_BADREG = 0x8700 -}; - -int int12_handler(struct eregs *regs); -int int1a_handler(struct eregs *regs); -int int15_handler(struct eregs *regs); - -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; - u32 dword; - u16 word; - u8 byte, reg; - - switch (func) { - case PCIBIOS_CHECK: - regs->edx = 0x20494350; /* ' ICP' */ - regs->edi = 0x00000000; /* protected mode entry */ - retval = 0; - break; - case PCIBIOS_FINDDEV: - devid = regs->ecx; - vendorid = regs->edx; - devindex = regs->esi; - dev = 0; - while ((dev = dev_find_device(vendorid, devid, dev))) { - 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 PCIBIOS_READCONFDWORD: - case PCIBIOS_READCONFWORD: - case PCIBIOS_READCONFBYTE: - case PCIBIOS_WRITECONFDWORD: - case PCIBIOS_WRITECONFWORD: - case PCIBIOS_WRITECONFBYTE: - 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; - return retval; - } - switch (func) { - case PCIBIOS_READCONFBYTE: - byte = pci_read_config8(dev, reg); - regs->ecx = byte; - break; - case PCIBIOS_READCONFWORD: - word = pci_read_config16(dev, reg); - regs->ecx = word; - break; - case PCIBIOS_READCONFDWORD: - dword = pci_read_config32(dev, reg); - regs->ecx = dword; - break; - case PCIBIOS_WRITECONFBYTE: - byte = regs->ecx; - pci_write_config8(dev, reg, byte); - break; - case PCIBIOS_WRITECONFWORD: - word = regs->ecx; - pci_write_config16(dev, reg, word); - break; - case PCIBIOS_WRITECONFDWORD: - dword = regs->ecx; - pci_write_config32(dev, reg, dword); - break; - } - - 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); - retval = -1; - 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_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: - regs->eax = 0x5f; - regs->ecx = BOOT_DISPLAY_DEFAULT; - 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; -} - |