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 "chip.h"
  28 #include "it8712f.h"
  29
  30 /* Base address 0x2e: 0x87 0x01 0x55 0x55. */
  31 /* Base address 0x4e: 0x87 0x01 0x55 0xaa. */
  32 static void pnp_enter_ext_func_mode(device_t dev)
  33 {
  34         outb(0x87, dev->path.u.pnp.port);
  35         outb(0x01, dev->path.u.pnp.port);
  36         outb(0x55, dev->path.u.pnp.port);
  37
  38         if (dev->path.u.pnp.port == 0x4e) {
  39                 outb(0xaa, dev->path.u.pnp.port);
  40         } else {
  41                 outb(0x55, dev->path.u.pnp.port);
  42         }
  43 }
  44
  45 static void pnp_exit_ext_func_mode(device_t dev)
  46 {
  47         pnp_write_config(dev, 0x02, 0x02);
  48 }
  49
  50 static void it8712f_init(device_t dev)
  51 {
  52         struct superio_ite_it8712f_config *conf;
  53         struct resource *res0, *res1;
  54
  55         if (!dev->enabled) {
  56                 return;
  57         }
  58
  59         conf = dev->chip_info;
  60
  61         switch (dev->path.u.pnp.device) {
  62         case IT8712F_FDC: /* TODO. */
  63                 break;
  64         case IT8712F_SP1:
  65                 res0 = find_resource(dev, PNP_IDX_IO0);
  66                 init_uart8250(res0->base, &conf->com1);
  67                 break;
  68         case IT8712F_SP2:
  69                 res0 = find_resource(dev, PNP_IDX_IO0);
  70                 init_uart8250(res0->base, &conf->com2);
  71                 break;
  72         case IT8712F_PP: /* TODO. */
  73                 break;
  74         case IT8712F_EC: /* TODO. */
  75                 break;
  76         case IT8712F_KBCK:
  77                 res0 = find_resource(dev, PNP_IDX_IO0);
  78                 res1 = find_resource(dev, PNP_IDX_IO1);
  79                 set_kbc_ps2_mode();
  80                 init_pc_keyboard(res0->base, res1->base, &conf->keyboard);
  81                 break;
  82         case IT8712F_KBCM: /* TODO. */
  83                 break;
  84         case IT8712F_MIDI: /* TODO. */
  85                 break;
  86         case IT8712F_GAME: /* TODO. */
  87                 break;
  88         case IT8712F_IR: /* TODO. */
  89                 break;
  90         }
  91 }
  92
  93 static void it8712f_pnp_set_resources(device_t dev)
  94 {
  95         pnp_enter_ext_func_mode(dev);
  96         pnp_set_resources(dev);
  97         pnp_exit_ext_func_mode(dev);
  98 }
  99
 100 static void it8712f_pnp_enable_resources(device_t dev)
 101 {
 102         pnp_enter_ext_func_mode(dev);
 103         pnp_enable_resources(dev);
 104         pnp_exit_ext_func_mode(dev);
 105 }
 106
 107 static void it8712f_pnp_enable(device_t dev)
 108 {
 109         pnp_enter_ext_func_mode(dev);
 110         pnp_set_logical_device(dev);
 111         pnp_set_enable(dev, dev->enabled);
 112         pnp_exit_ext_func_mode(dev);
 113 }
 114
 115 static struct device_operations ops = {
 116         .read_resources         = pnp_read_resources,
 117         .set_resources          = it8712f_pnp_set_resources,
 118         .enable_resources       = it8712f_pnp_enable_resources,
 119         .enable                 = it8712f_pnp_enable,
 120         .init                   = it8712f_init,
 121 };
 122
 123 /* TODO: FDC, MIDI, GAME, IR. */
 124 static struct pnp_info pnp_dev_info[] = {
 125         {&ops, IT8712F_SP1, PNP_IO0 | PNP_IRQ0, {0x7f8, 0}, },
 126         {&ops, IT8712F_SP2, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_DRQ1, {0x7f8, 0}, },
 127         {&ops, IT8712F_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0},},
 128         {&ops, IT8712F_EC, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x7f8, 0}, {0x7f8, 0x4},},
 129         {&ops, IT8712F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x7f8, 0}, {0x7f8, 0x4}, },
 130         {&ops, IT8712F_KBCM, PNP_IRQ0, },
 131         {&ops, IT8712F_GPIO, },
 132 };
 133
 134 static void enable_dev(struct device *dev)
 135 {
 136         pnp_enable_devices(dev, &pnp_ops,
 137                 sizeof(pnp_dev_info)/sizeof(pnp_dev_info[0]), pnp_dev_info);
 138 }
 139
 140 struct chip_operations superio_ite_it8712f_ops = {
 141         CHIP_NAME("ITE IT8712F Super I/O")
 142         .enable_dev = enable_dev,
 143 };
 144