src/superio/fintek/f71859/superio.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2010 Marc Jones <marcj303@gmail.com>
   5  * Copyright (C) 2008 Corey Osgood <corey.osgood@gmail.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  20  */
  21
  22 #include <arch/io.h>
  23 #include <device/device.h>
  24 #include <device/pnp.h>
  25 #include <console/console.h>
  26 #include <stdlib.h>
  27 #include <uart8250.h>
  28 #include "chip.h"
  29 #include "f71859.h"
  30
  31 static void pnp_enter_conf_state(device_t dev)
  32 {
  33         outb(0x87, dev->path.pnp.port);
  34         outb(0x87, dev->path.pnp.port);
  35 }
  36
  37 static void pnp_exit_conf_state(device_t dev)
  38 {
  39         outb(0xaa, dev->path.pnp.port);
  40 }
  41
  42 static void f71859_init(device_t dev)
  43 {
  44         if (!dev->enabled)
  45                 return;
  46
  47         /* TODO: Might potentially need code for HWM or FDC etc. */
  48 }
  49
  50 static void f71859_pnp_set_resources(device_t dev)
  51 {
  52         pnp_enter_conf_state(dev);
  53         pnp_set_resources(dev);
  54         pnp_exit_conf_state(dev);
  55 }
  56
  57 static void f71859_pnp_enable_resources(device_t dev)
  58 {
  59         pnp_enter_conf_state(dev);
  60         pnp_enable_resources(dev);
  61         pnp_exit_conf_state(dev);
  62 }
  63
  64 static void f71859_pnp_enable(device_t dev)
  65 {
  66         pnp_enter_conf_state(dev);
  67         pnp_set_logical_device(dev);
  68         pnp_set_enable(dev, !!dev->enabled);
  69         pnp_exit_conf_state(dev);
  70 }
  71
  72 static struct device_operations ops = {
  73         .read_resources   = pnp_read_resources,
  74         .set_resources    = f71859_pnp_set_resources,
  75         .enable_resources = f71859_pnp_enable_resources,
  76         .enable           = f71859_pnp_enable,
  77         .init             = f71859_init,
  78 };
  79
  80 static struct pnp_info pnp_dev_info[] = {
  81         /* TODO: Some of the 0x07f8 etc. values may not be correct. */
  82         { &ops, F71859_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
  83 };
  84
  85 static void enable_dev(device_t dev)
  86 {
  87         pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
  88 }
  89
  90 struct chip_operations superio_fintek_f71859_ops = {
  91         CHIP_NAME("Fintek F71859 Super I/O")
  92         .enable_dev = enable_dev
  93 };