src/superio/ite/it8712f/superio.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
   5  * Copyright (C) 2007 Philipp Degler <pdegler@rumms.uni-mannheim.de>
   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 <device/device.h>
  23 #include <device/pnp.h>
  24 #include <uart8250.h>
  25 #include <pc80/keyboard.h>
  26 #include <arch/io.h>
  27 #include <stdlib.h>
  28 #include "chip.h"
  29 #include "it8712f.h"
  30
  31 static void pnp_enter_ext_func_mode(device_t dev)
  32 {
  33         u16 port = dev->path.pnp.port;
  34
  35         outb(0x87, port);
  36         outb(0x01, port);
  37         outb(0x55, port);
  38         outb((port == 0x4e) ? 0xaa : 0x55, port);
  39 }
  40
  41 static void pnp_exit_ext_func_mode(device_t dev)
  42 {
  43         pnp_write_config(dev, 0x02, 0x02);
  44 }
  45
  46 static void it8712f_init(device_t dev)
  47 {
  48         struct superio_ite_it8712f_config *conf = dev->chip_info;
  49         struct resource *res0;
  50
  51         if (!dev->enabled)
  52                 return;
  53
  54         switch (dev->path.pnp.device) {
  55         case IT8712F_FDC: /* TODO. */
  56                 break;
  57         case IT8712F_SP1:
  58                 res0 = find_resource(dev, PNP_IDX_IO0);
  59                 init_uart8250(res0->base, &conf->com1);
  60                 break;
  61         case IT8712F_SP2:
  62                 res0 = find_resource(dev, PNP_IDX_IO0);
  63                 init_uart8250(res0->base, &conf->com2);
  64                 break;
  65         case IT8712F_PP: /* TODO. */
  66                 break;
  67         case IT8712F_EC: /* TODO. */
  68                 break;
  69         case IT8712F_KBCK:
  70                 set_kbc_ps2_mode();
  71                 pc_keyboard_init(&conf->keyboard);
  72                 break;
  73         case IT8712F_KBCM: /* TODO. */
  74                 break;
  75         case IT8712F_MIDI: /* TODO. */
  76                 break;
  77         case IT8712F_GAME: /* TODO. */
  78                 break;
  79         case IT8712F_IR: /* TODO. */
  80                 break;
  81         }
  82 }
  83
  84 static void it8712f_pnp_set_resources(device_t dev)
  85 {
  86         pnp_enter_ext_func_mode(dev);
  87         pnp_set_resources(dev);
  88         pnp_exit_ext_func_mode(dev);
  89 }
  90
  91 static void it8712f_pnp_enable_resources(device_t dev)
  92 {
  93         pnp_enter_ext_func_mode(dev);
  94         pnp_enable_resources(dev);
  95         pnp_exit_ext_func_mode(dev);
  96 }
  97
  98 static void it8712f_pnp_enable(device_t dev)
  99 {
 100         pnp_enter_ext_func_mode(dev);
 101         pnp_set_logical_device(dev);
 102         pnp_set_enable(dev, dev->enabled);
 103         pnp_exit_ext_func_mode(dev);
 104 }
 105
 106 static struct device_operations ops = {
 107         .read_resources         = pnp_read_resources,
 108         .set_resources          = it8712f_pnp_set_resources,
 109         .enable_resources       = it8712f_pnp_enable_resources,
 110         .enable                 = it8712f_pnp_enable,
 111         .init                   = it8712f_init,
 112 };
 113
 114 static struct pnp_info pnp_dev_info[] = {
 115         { &ops, IT8712F_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x0ff8, 0}, },
 116         { &ops, IT8712F_SP1, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
 117         { &ops, IT8712F_SP2, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
 118         { &ops, IT8712F_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x0ffc, 0}, },
 119         { &ops, IT8712F_EC, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x0ff8, 0}, {0x0ff8, 4}, },
 120         { &ops, IT8712F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x0fff, 0}, {0x0fff, 4}, },
 121         { &ops, IT8712F_KBCM, PNP_IRQ0, },
 122         { &ops, IT8712F_GPIO, PNP_IO0 | PNP_IO1 | PNP_IO2 | PNP_IRQ0, {0x0fff, 0}, {0x0ff8, 0}, {0x0ff8, 0}, },
 123         { &ops, IT8712F_MIDI, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
 124         { &ops, IT8712F_GAME, PNP_IO0, {0x0fff, 0}, },
 125         { &ops, IT8712F_IR, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
 126 };
 127
 128 static void enable_dev(struct device *dev)
 129 {
 130         pnp_enable_devices(dev, &pnp_ops,
 131                 ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
 132 }
 133
 134 struct chip_operations superio_ite_it8712f_ops = {
 135         CHIP_NAME("ITE IT8712F Super I/O")
 136         .enable_dev = enable_dev,
 137 };