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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2004 Nick Barker <nick.barker9@btinternet.com>
*
* 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 <arch/io.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pnp.h>
#include <uart8250.h>
#include <stdlib.h>
#include "vt1211.h"
#include "chip.h"
static u8 hwm_io_regs[] = {
0x10,0x03, 0x11,0x10, 0x12,0x0d, 0x13,0x7f,
0x14,0x21, 0x15,0x81, 0x16,0xbd, 0x17,0x8a,
0x18,0x00, 0x19,0x00, 0x1a,0x00, 0x1b,0x00,
0x1d,0xff, 0x1e,0x00, 0x1f,0x73, 0x20,0x67,
0x21,0xc1, 0x22,0xca, 0x23,0x74, 0x24,0xc2,
0x25,0xc7, 0x26,0xc9, 0x27,0x7f, 0x29,0x00,
0x2a,0x00, 0x2b,0xff, 0x2c,0x00, 0x2d,0xff,
0x2e,0x00, 0x2f,0xff, 0x30,0x00, 0x31,0xff,
0x32,0x00, 0x33,0xff, 0x34,0x00, 0x39,0xff,
0x3a,0x00, 0x3b,0xff, 0x3c,0xff, 0x3d,0xff,
0x3e,0x00, 0x3f,0xb0, 0x43,0xff, 0x44,0xff,
0x46,0xff, 0x47,0x50, 0x4a,0x03, 0x4b,0xc0,
0x4c,0x00, 0x4d,0x00, 0x4e,0x0f, 0x5d,0x77,
0x5c,0x00, 0x5f,0x33, 0x40,0x01,
};
static void pnp_enter_ext_func_mode(device_t dev)
{
outb(0x87, dev->path.pnp.port);
outb(0x87, dev->path.pnp.port);
}
static void pnp_exit_ext_func_mode(device_t dev)
{
outb(0xaa, dev->path.pnp.port);
}
static void vt1211_set_iobase(device_t dev, u8 index, u16 iobase)
{
switch (dev->path.pnp.device) {
case VT1211_FDC:
case VT1211_PP:
case VT1211_SP1:
case VT1211_SP2:
pnp_write_config(dev, index + 0, (iobase >> 2) & 0xff);
break;
case VT1211_ROM:
/* TODO: Error. VT1211_ROM doesn't have an I/O base. */
break;
case VT1211_MIDI:
case VT1211_GAME:
case VT1211_GPIO:
case VT1211_WDG:
case VT1211_WUC:
case VT1211_HWM:
case VT1211_FIR:
default:
pnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
pnp_write_config(dev, index + 1, iobase & 0xff);
break;
}
}
/* Initialize VT1211 hardware monitor registers, which are at 0xECXX. */
static void init_hwm(u16 base)
{
int i;
for (i = 0; i < sizeof(hwm_io_regs); i += 2)
outb(hwm_io_regs[i + 1], base + hwm_io_regs[i]);
}
static void vt1211_init(struct device *dev)
{
struct superio_via_vt1211_config *conf = dev->chip_info;
struct resource *res0;
if (!dev->enabled)
return;
switch (dev->path.pnp.device) {
case VT1211_SP1:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com1);
break;
case VT1211_SP2:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com2);
break;
case VT1211_HWM:
res0 = find_resource(dev, PNP_IDX_IO0);
init_hwm(res0->base);
break;
case VT1211_FDC:
case VT1211_PP:
case VT1211_MIDI:
case VT1211_GAME:
case VT1211_GPIO:
case VT1211_WDG:
case VT1211_WUC:
case VT1211_FIR:
case VT1211_ROM:
/* TODO: Any init needed for these LDNs? */
break;
default:
printk(BIOS_INFO, "VT1211: Cannot init unknown device!\n");
}
}
static void vt1211_pnp_enable_resources(device_t dev)
{
printk(BIOS_DEBUG, "%s - enabling\n", dev_path(dev));
pnp_enter_ext_func_mode(dev);
pnp_enable_resources(dev);
pnp_exit_ext_func_mode(dev);
}
static void vt1211_pnp_set_resources(struct device *dev)
{
struct resource *res;
#if CONFIG_CONSOLE_SERIAL8250 == 1
/* TODO: Do the same for SP2? */
if (dev->path.pnp.device == VT1211_SP1) {
for (res = dev->resource_list; res; res = res->next) {
res->flags |= IORESOURCE_STORED;
report_resource_stored(dev, res, "");
}
return;
}
#endif
pnp_enter_ext_func_mode(dev);
pnp_set_logical_device(dev);
/* Paranoia says I should disable the device here... */
for (res = dev->resource_list; res; res = res->next) {
if (!(res->flags & IORESOURCE_ASSIGNED)) {
printk(BIOS_ERR, "ERROR: %s %02lx %s size: 0x%010Lx "
"not assigned\n", dev_path(dev), res->index,
resource_type(res), res->size);
continue;
}
/* Now store the resource. */
if (res->flags & IORESOURCE_IO) {
vt1211_set_iobase(dev, res->index, res->base);
} else if (res->flags & IORESOURCE_DRQ) {
pnp_set_drq(dev, res->index, res->base);
} else if (res->flags & IORESOURCE_IRQ) {
pnp_set_irq(dev, res->index, res->base);
} else {
printk(BIOS_ERR, "ERROR: %s %02lx unknown resource "
"type\n", dev_path(dev), res->index);
return;
}
res->flags |= IORESOURCE_STORED;
report_resource_stored(dev, res, "");
}
pnp_exit_ext_func_mode(dev);
}
static void vt1211_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);
}
struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = vt1211_pnp_set_resources,
.enable_resources = vt1211_pnp_enable_resources,
.enable = vt1211_pnp_enable,
.init = vt1211_init,
};
/* TODO: Check if 0x07f8 is correct for FDC/PP/SP1/SP2, the rest is correct. */
static struct pnp_info pnp_dev_info[] = {
{ &ops, VT1211_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, VT1211_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, VT1211_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, VT1211_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, VT1211_MIDI, PNP_IO0 | PNP_IRQ0, {0xfffc, 0}, },
{ &ops, VT1211_GAME, PNP_IO0, {0xfff8, 0}, },
{ &ops, VT1211_GPIO, PNP_IO0 | PNP_IRQ0, {0xfff0, 0}, },
{ &ops, VT1211_WDG, PNP_IO0 | PNP_IRQ0, {0xfff0, 0}, },
{ &ops, VT1211_WUC, PNP_IO0 | PNP_IRQ0, {0xfff0, 0}, },
{ &ops, VT1211_HWM, PNP_IO0 | PNP_IRQ0, {0xff00, 0}, },
{ &ops, VT1211_FIR, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0xff00, 0}, },
{ &ops, VT1211_ROM, },
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_via_vt1211_ops = {
CHIP_NAME("VIA VT1211 Super I/O")
.enable_dev = enable_dev,
};
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