src/superio/winbond/w83697hf/superio.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2008 Sean Nelson <snelson@nmt.edu>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <arch/io.h>
  22 #include <device/device.h>
  23 #include <device/pnp.h>
  24 #include <console/console.h>
  25 #include <string.h>
  26 #include <bitops.h>
  27 #include <uart8250.h>
  28 #include <pc80/mc146818rtc.h>
  29 #include <stdlib.h>
  30 #include "chip.h"
  31 #include "w83697hf.h"
  32
  33 static void pnp_enter_ext_func_mode(device_t dev)
  34 {
  35         outb(0x87, dev->path.pnp.port);
  36         outb(0x87, dev->path.pnp.port);
  37 }
  38
  39 static void pnp_exit_ext_func_mode(device_t dev)
  40 {
  41         outb(0xaa, dev->path.pnp.port);
  42 }
  43
  44 static void w83697hf_init(device_t dev)
  45 {
  46         struct superio_winbond_w83697hf_config *conf = dev->chip_info;
  47         struct resource *res0;
  48
  49         if (!dev->enabled)
  50                 return;
  51
  52         switch(dev->path.pnp.device) {
  53         case W83697HF_SP1:
  54                 res0 = find_resource(dev, PNP_IDX_IO0);
  55                 init_uart8250(res0->base, &conf->com1);
  56                 break;
  57         case W83697HF_SP2:
  58                 res0 = find_resource(dev, PNP_IDX_IO0);
  59                 init_uart8250(res0->base, &conf->com2);
  60                 break;
  61         }
  62 }
  63
  64 static void w83697hf_pnp_set_resources(device_t dev)
  65 {
  66         pnp_enter_ext_func_mode(dev);
  67         pnp_set_resources(dev);
  68         pnp_exit_ext_func_mode(dev);
  69 }
  70
  71 static void w83697hf_pnp_enable(device_t dev)
  72 {
  73         if (dev->enabled)
  74                 return;
  75
  76         pnp_enter_ext_func_mode(dev);
  77         pnp_set_logical_device(dev);
  78         pnp_set_enable(dev, 0);
  79         pnp_exit_ext_func_mode(dev);
  80 }
  81
  82 static void w83697hf_pnp_enable_resources(device_t dev)
  83 {
  84         pnp_enter_ext_func_mode(dev);
  85         pnp_enable_resources(dev);
  86         pnp_exit_ext_func_mode(dev);
  87 }
  88
  89 static struct device_operations ops = {
  90         .read_resources   = pnp_read_resources,
  91         .set_resources    = w83697hf_pnp_set_resources,
  92         .enable_resources = w83697hf_pnp_enable_resources,
  93         .enable           = w83697hf_pnp_enable,
  94         .init             = w83697hf_init,
  95 };
  96
  97 static struct pnp_info pnp_dev_info[] = {
  98         { &ops, W83697HF_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
  99         { &ops, W83697HF_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
 100         { &ops, W83697HF_SP1,  PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
 101         { &ops, W83697HF_SP2,  PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
 102         { &ops, W83697HF_CIR,  PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
 103         { &ops, W83697HF_GAME_GPIO1, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x7ff, 0 }, {0x7fe, 0x4}, },
 104         { &ops, W83697HF_MIDI_GPIO5, },
 105         { &ops, W83697HF_GPIO234, },
 106         { &ops, W83697HF_ACPI, },
 107         { &ops, W83697HF_HWM,  PNP_IO0 | PNP_IRQ0, { 0xff8, 0 }, },
 108 };
 109
 110 static void enable_dev(struct device *dev)
 111 {
 112         pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
 113 }
 114
 115 struct chip_operations superio_winbond_w83697hf_ops = {
 116         CHIP_NAME("Winbond W83697HF Super I/O")
 117         .enable_dev = enable_dev,
 118 };