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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Arastra, 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; 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 <stdlib.h>
#include <device/device.h>
#include <device/pnp.h>
#include <drivers/uart/uart8250reg.h>
#include "i8900.h"
#include <arch/io.h>
static void pnp_enter_ext_func_mode(struct device *dev)
{
outb(0x80, dev->path.pnp.port);
outb(0x86, dev->path.pnp.port);
}
static void pnp_exit_ext_func_mode(struct device *dev)
{
outb(0x68, dev->path.pnp.port);
outb(0x08, dev->path.pnp.port);
}
static void i8900_init(struct device *dev)
{
if (!dev->enabled)
return;
}
static void i8900_pnp_set_resources(struct device *dev)
{
pnp_enter_ext_func_mode(dev);
pnp_set_resources(dev);
pnp_exit_ext_func_mode(dev);
}
static void i8900_pnp_enable_resources(struct device *dev)
{
pnp_enter_ext_func_mode(dev);
pnp_enable_resources(dev);
pnp_exit_ext_func_mode(dev);
}
static void i8900_pnp_enable(struct device *dev)
{
pnp_enter_ext_func_mode(dev);
pnp_set_logical_device(dev);
pnp_set_enable(dev, !!dev->enabled);
pnp_exit_ext_func_mode(dev);
}
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = i8900_pnp_set_resources,
.enable_resources = i8900_pnp_enable_resources,
.enable = i8900_pnp_enable,
.init = i8900_init,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, I8900_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, I8900_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, I8900_WDT, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_intel_i8900_ops = {
CHIP_NAME("Intel 8900 Super I/O")
.enable_dev = enable_dev,
};
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