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/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2007 AMD
* (Written by Yinghai Lu <yinghai.lu@amd.com> for AMD)
* Copyright (C) 2007 Ward Vandewege <ward@gnu.org>
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <device/device.h>
#include <device/pnp.h>
#include <console/console.h>
#include <uart8250.h>
#include <pc80/keyboard.h>
#include <arch/io.h>
#include "chip.h"
#include "it8716f.h"
/* Base address 0x2e: 0x87 0x01 0x55 0x55. */
/* Base address 0x4e: 0x87 0x01 0x55 0xaa. */
static void pnp_enter_ext_func_mode(device_t dev)
{
outb(0x87, dev->path.u.pnp.port);
outb(0x01, dev->path.u.pnp.port);
outb(0x55, dev->path.u.pnp.port);
if (dev->path.u.pnp.port == 0x4e) {
outb(0xaa, dev->path.u.pnp.port);
} else {
outb(0x55, dev->path.u.pnp.port);
}
}
static void pnp_exit_ext_func_mode(device_t dev)
{
pnp_write_config(dev, 0x02, 0x02);
}
static void pnp_write_index(uint16_t port_base, uint8_t reg, uint8_t value)
{
outb(reg, port_base);
outb(value, port_base + 1);
}
static uint8_t pnp_read_index(uint16_t port_base, uint8_t reg)
{
outb(reg, port_base);
return inb(port_base + 1);
}
static void init_ec(uint16_t base)
{
uint8_t value;
/* Read out current value of FAN_CTL control register (0x14). */
value = pnp_read_index(base, 0x14);
printk_debug("FAN_CTL: reg = 0x%04x, read value = 0x%02x\r\n",
base + 0x14, value);
/* Set FAN_CTL control register (0x14) polarity to high, and
activate fans 1, 2 and 3. */
pnp_write_index(base, 0x14, value | 0x87);
printk_debug("FAN_CTL: reg = 0x%04x, writing value = 0x%02x\r\n",
base + 0x14, value | 0x87);
}
static void it8716f_init(device_t dev)
{
struct superio_ite_it8716f_config *conf;
struct resource *res0, *res1;
if (!dev->enabled) {
return;
}
conf = dev->chip_info;
/* TODO: FDC, PP, KBCM, MIDI, GAME, IR. */
switch (dev->path.u.pnp.device) {
case IT8716F_SP1:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com1);
break;
case IT8716F_SP2:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com2);
break;
case IT8716F_EC:
res0 = find_resource(dev, PNP_IDX_IO0);
#define EC_INDEX_PORT 5
init_ec(res0->base + EC_INDEX_PORT);
break;
case IT8716F_KBCK:
res0 = find_resource(dev, PNP_IDX_IO0);
res1 = find_resource(dev, PNP_IDX_IO1);
init_pc_keyboard(res0->base, res1->base, &conf->keyboard);
break;
}
}
static void it8716f_pnp_set_resources(device_t dev)
{
pnp_enter_ext_func_mode(dev);
pnp_set_resources(dev);
pnp_exit_ext_func_mode(dev);
}
static void it8716f_pnp_enable_resources(device_t dev)
{
pnp_enter_ext_func_mode(dev);
pnp_enable_resources(dev);
pnp_exit_ext_func_mode(dev);
}
static void it8716f_pnp_enable(device_t 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 = it8716f_pnp_set_resources,
.enable_resources = it8716f_pnp_enable_resources,
.enable = it8716f_pnp_enable,
.init = it8716f_init,
};
static struct pnp_info pnp_dev_info[] = {
{&ops, IT8716F_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0},},
{&ops, IT8716F_SP1, PNP_IO0 | PNP_IRQ0, {0x7f8, 0},},
{&ops, IT8716F_SP2, PNP_IO0 | PNP_IRQ0, {0x7f8, 0},},
{&ops, IT8716F_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0},},
{&ops, IT8716F_EC, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x7f8, 0},
{0x7f8, 0x4},},
{&ops, IT8716F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x7ff, 0},
{0x7ff, 0x4},},
{&ops, IT8716F_KBCM, PNP_IRQ0,},
{&ops, IT8716F_GPIO,},
{&ops, IT8716F_MIDI, PNP_IO0 | PNP_IRQ0, {0x7fe, 0x4},},
{&ops, IT8716F_GAME, PNP_IO0, {0x7ff, 0},},
{&ops, IT8716F_IR,},
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &ops,
sizeof(pnp_dev_info) / sizeof(pnp_dev_info[0]), pnp_dev_info);
}
struct chip_operations superio_ite_it8716f_ops = {
CHIP_NAME("ITE IT8716F Super I/O")
.enable_dev = enable_dev,
};
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