| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2008-2009 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 <arch/io.h> |
| #include <console/console.h> |
| #include <cpu/x86/smm.h> |
| #include <southbridge/intel/i82801ix/nvs.h> |
| #include <southbridge/intel/i82801ix/i82801ix.h> |
| #include <ec/acpi/ec.h> |
| |
| /* The southbridge SMI handler checks whether gnvs has a |
| * valid pointer before calling the trap handler |
| */ |
| extern global_nvs_t *gnvs; |
| |
| int mainboard_io_trap_handler(int smif) |
| { |
| switch (smif) { |
| case 0x99: |
| printk(BIOS_DEBUG, "Sample\n"); |
| gnvs->smif = 0; |
| break; |
| default: |
| return 0; |
| } |
| |
| /* On success, the IO Trap Handler returns 0 |
| * On failure, the IO Trap Handler returns a value != 0 |
| * |
| * For now, we force the return value to 0 and log all traps to |
| * see what's going on. |
| */ |
| //gnvs->smif = 0; |
| return 1; |
| } |
| |
| void mainboard_smi_gpi(u32 gpi_sts) |
| { |
| if (gpi_sts & (1 << 1)) { |
| printk(BIOS_DEBUG, "EC/SMI\n"); |
| /* TODO */ |
| } |
| } |
| |
| int mainboard_smi_apmc(u8 apmc) |
| { |
| switch (apmc) { |
| case APM_CNT_ACPI_ENABLE: |
| send_ec_command(0x05); /* Set_SMI_Disable */ |
| send_ec_command(0xaa); /* Set_ACPI_Enable */ |
| break; |
| |
| case APM_CNT_ACPI_DISABLE: |
| send_ec_command(0x04); /* Set_SMI_Enable */ |
| send_ec_command(0xab); /* Set_ACPI_Disable */ |
| break; |
| } |
| return 0; |
| } |