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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 <arch/romcc_io.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include "southbridge/intel/i82801gx/nvs.h"
#include <ec/acpi/ec.h>
#include "dock.h"
#include "smi.h"
/* The southbridge SMI handler checks whether gnvs has a
* valid pointer before calling the trap handler
*/
extern global_nvs_t *gnvs;
static void mainboard_smm_init(void)
{
printk(BIOS_DEBUG, "initializing SMI\n");
/* Enable 0x1600/0x1600 register pair */
ec_set_bit(0x00, 0x05);
ec_set_ports(0x1604, 0x1600);
}
int mainboard_io_trap_handler(int smif)
{
static int smm_initialized;
if (!smm_initialized) {
mainboard_smm_init();
smm_initialized = 1;
}
switch (smif) {
case SMI_DOCK_CONNECT:
dlpc_init();
if (!dock_connect()) {
/* set dock LED to indicate status */
ec_write(0x0c, 0x88);
} else {
/* blink dock LED to indicate failure */
ec_write(0x0c, 0xc8);
}
break;
case SMI_DOCK_DISCONNECT:
dock_disconnect();
ec_write(0x0c, 0x08);
break;
default:
return 1;
}
/* On success, the IO Trap Handler returns 0
* On failure, the IO Trap Handler returns a value != 0 */
return 0;
}
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