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/*
* 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(u16 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;
}
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