| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2009 coresystems GmbH |
| * Copyright (C) 2009 Libra Li <libra.li@technexion.com> |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| */ |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <console/console.h> |
| #include <arch/interrupt.h> |
| #include "vgabios.h" |
| #include <x86emu/regs.h> |
| |
| |
| int tim5690_int15_handler(void); |
| |
| static rs690_vbios_regs vbios_regs_local; |
| |
| /* Initialization interrupt function */ |
| static void vbios_fun_init(rs690_vbios_regs *vbios_regs) |
| { |
| vbios_regs_local.int15_regs.fun00_panel_id = vbios_regs->int15_regs.fun00_panel_id; |
| vbios_regs_local.int15_regs.fun05_tv_standard = vbios_regs->int15_regs.fun05_tv_standard; |
| } |
| |
| /* BIOS int15 function */ |
| int tim5690_int15_handler(void) |
| { |
| int res = 0; |
| |
| printk(BIOS_DEBUG, "tim5690_int15_handler\n"); |
| |
| switch (X86_EAX & 0xffff) { |
| case AMD_RS690_INT15: |
| switch (X86_EBX & 0xff) { |
| case 0x00: |
| X86_EAX &= ~(0xff); |
| X86_EBX = (X86_EBX & ~(0xff)) | vbios_regs_local.int15_regs.fun00_panel_id; |
| res = 1; |
| break; |
| case 0x05: |
| X86_EAX &= ~(0xff); |
| X86_EBX = (X86_EBX & ~(0xff)) | vbios_regs_local.int15_regs.fun05_tv_standard; |
| res = 1; |
| break; |
| } |
| break; |
| default: |
| printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", |
| X86_EAX & 0xffff); |
| break; |
| } |
| |
| return res; |
| } |
| |
| /* Initialization VBIOS function */ |
| void vgabios_init(rs690_vbios_regs *vbios_regs) |
| { |
| printk(BIOS_DEBUG, "vgabios_init\n"); |
| |
| mainboard_interrupt_handlers(0x15, &tim5690_int15_handler); |
| vbios_fun_init(vbios_regs); |
| } |