src/superio/winbond/w83977tf/superio.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2000 AG Electronics Ltd.
   5  * Copyright (C) 2003-2004 Linux Networx
   6  * Copyright (C) 2004 Tyan
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21  */
  22
  23 #include <arch/io.h>
  24 #include <device/device.h>
  25 #include <device/pnp.h>
  26 #include <console/console.h>
  27 #include <string.h>
  28 #include <bitops.h>
  29 #include <uart8250.h>
  30 #include <pc80/keyboard.h>
  31 #include <stdlib.h>
  32 #include "chip.h"
  33 #include "w83977tf.h"
  34
  35 static void w83977tf_enter_ext_func_mode(device_t dev)
  36 {
  37         outb(0x87, dev->path.pnp.port);
  38         outb(0x87, dev->path.pnp.port);
  39 }
  40
  41 static void w83977tf_exit_ext_func_mode(device_t dev)
  42 {
  43         outb(0xaa, dev->path.pnp.port);
  44 }
  45
  46 static void w83977tf_init(device_t dev)
  47 {
  48         struct superio_winbond_w83977tf_config *conf = dev->chip_info;
  49
  50         if (!dev->enabled)
  51                 return;
  52
  53         switch(dev->path.pnp.device) {
  54         case W83977TF_KBC:
  55                 pc_keyboard_init(&conf->keyboard);
  56                 break;
  57         }
  58 }
  59
  60 static void w83977tf_set_resources(device_t dev)
  61 {
  62         w83977tf_enter_ext_func_mode(dev);
  63         pnp_set_resources(dev);
  64         w83977tf_exit_ext_func_mode(dev);
  65 }
  66
  67 static void w83977tf_enable_resources(device_t dev)
  68 {
  69         w83977tf_enter_ext_func_mode(dev);
  70         pnp_enable_resources(dev);
  71         w83977tf_exit_ext_func_mode(dev);
  72 }
  73
  74 static void w83977tf_enable(device_t dev)
  75 {
  76         w83977tf_enter_ext_func_mode(dev);
  77         pnp_enable(dev);
  78         w83977tf_exit_ext_func_mode(dev);
  79 }
  80
  81 static struct device_operations ops = {
  82         .read_resources   = pnp_read_resources,
  83         .set_resources    = w83977tf_set_resources,
  84         .enable_resources = w83977tf_enable_resources,
  85         .enable           = w83977tf_enable,
  86         .init             = w83977tf_init,
  87 };
  88
  89 static struct pnp_info pnp_dev_info[] = {
  90         { &ops, W83977TF_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
  91         { &ops, W83977TF_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
  92         { &ops, W83977TF_SP1,  PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
  93         { &ops, W83977TF_SP2,  PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
  94         { &ops, W83977TF_KBC,  PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, {0x07ff, 0}, {0x07ff, 4}, },
  95         { &ops, W83977TF_CIR,  PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
  96         { &ops, W83977TF_GAME_MIDI_GPIO1, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x07ff, 0}, {0x07fe, 4}, },
  97         { &ops, W83977TF_ACPI, PNP_IRQ0, },
  98 };
  99
 100 static void enable_dev(device_t dev)
 101 {
 102         pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
 103 }
 104
 105 struct chip_operations superio_winbond_w83977tf_ops = {
 106         CHIP_NAME("Winbond W83977TF Super I/O")
 107         .enable_dev = enable_dev,
 108 };