aboutsummaryrefslogtreecommitdiff
path: root/util/x86emu/x86_interrupts.c
diff options
context:
space:
mode:
Diffstat (limited to 'util/x86emu/x86_interrupts.c')
-rw-r--r--util/x86emu/x86_interrupts.c228
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;
-}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-28 18:14:35 +0000