/* * This file is part of the coreboot project. * * Copyright (C) 2007-2009 coresystems GmbH * Copyright (C) 2011 Google Inc. * * 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 <types.h> #include <string.h> #include <device/device.h> #include <device/device.h> #include <device/pci_def.h> #include <device/pci_ops.h> #include <console/console.h> #if CONFIG_VGA_ROM_RUN #include <x86emu/x86emu.h> #endif #include <pc80/mc146818rtc.h> #include <arch/acpi.h> #include <arch/io.h> #include <arch/interrupt.h> #include <boot/coreboot_tables.h> #include "hda_verb.h" #include <southbridge/intel/lynxpoint/pch.h> void mainboard_suspend_resume(void) { /* Call SMM finalize() handlers before resume */ outb(0xcb, 0xb2); } #if CONFIG_VGA_ROM_RUN static int int15_handler(void) { int res = 1; printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n", __func__, X86_AX, X86_BX, X86_CX, X86_DX); switch (X86_AX) { case 0x5f34: /* * Set Panel Fitting Hook: * bit 2 = Graphics Stretching * bit 1 = Text Stretching * bit 0 = Centering (do not set with bit1 or bit2) * 0 = video bios default */ X86_AX = 0x005f; X86_CX = 0x0001; res = 1; break; case 0x5f35: /* * Boot Display Device Hook: * bit 0 = CRT * bit 1 = TV (eDP) * * bit 2 = EFP * * bit 3 = LFP * bit 4 = CRT2 * bit 5 = TV2 (eDP) * * bit 6 = EFP2 * * bit 7 = LFP2 */ X86_AX = 0x005f; X86_CX = 0x0000; res = 1; break; case 0x5f51: /* * Hook to select active LFP configuration: * 00h = No LVDS, VBIOS does not enable LVDS * 01h = Int-LVDS, LFP driven by integrated LVDS decoder * 02h = SVDO-LVDS, LFP driven by SVDO decoder * 03h = eDP, LFP Driven by Int-DisplayPort encoder */ X86_AX = 0x005f; X86_CX = 0x0003; res = 1; break; case 0x5f70: switch ((X86_CX >> 8) & 0xff) { case 0: /* Get Mux */ X86_AX = 0x005f; X86_CX = 0x0000; res = 1; break; case 1: /* Set Mux */ X86_AX = 0x005f; X86_CX = 0x0000; res = 1; break; case 2: /* Get SG/Non-SG mode */ X86_AX = 0x005f; X86_CX = 0x0000; res = 1; break; default: /* Interrupt was not handled */ printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n", ((X86_CX >> 8) & 0xff)); break; } break; default: printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX); break; } return res; } #endif /* Audio Setup */ extern const u32 * cim_verb_data; extern u32 cim_verb_data_size; static void verb_setup(void) { cim_verb_data = mainboard_cim_verb_data; cim_verb_data_size = sizeof(mainboard_cim_verb_data); } // mainboard_enable is executed as first thing after // enumerate_buses(). static void mainboard_enable(device_t dev) { #if CONFIG_VGA_ROM_RUN /* Install custom int15 handler for VGA OPROM */ mainboard_interrupt_handlers(0x15, &int15_handler); #endif verb_setup(); } struct chip_operations mainboard_ops = { .enable_dev = mainboard_enable, };