src/superio/via/vt1211/vt1211.c

   1 /*
   2  * (C) Copyright 2004 Nick Barker <nick.barker9@btinternet.com>
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of
   8  * the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  18  * MA 02110-1301 USA
  19  */
  20
  21  /* vt1211 routines and defines*/
  22
  23
  24 #include <arch/io.h>
  25 #include <console/console.h>
  26 #include <device/device.h>
  27 #include <device/pnp.h>
  28 #include <uart8250.h>
  29
  30 #include "vt1211.h"
  31 #include "chip.h"
  32
  33
  34 static unsigned char vt1211hwmonitorinits[]={
  35  0x10,0x3, 0x11,0x10, 0x12,0xd, 0x13,0x7f,
  36  0x14,0x21, 0x15,0x81, 0x16,0xbd, 0x17,0x8a,
  37  0x18,0x0, 0x19,0x0, 0x1a,0x0, 0x1b,0x0,
  38  0x1d,0xff, 0x1e,0x0, 0x1f,0x73, 0x20,0x67,
  39  0x21,0xc1, 0x22,0xca, 0x23,0x74, 0x24,0xc2,
  40  0x25,0xc7, 0x26,0xc9, 0x27,0x7f, 0x29,0x0,
  41  0x2a,0x0, 0x2b,0xff, 0x2c,0x0, 0x2d,0xff,
  42  0x2e,0x0, 0x2f,0xff, 0x30,0x0, 0x31,0xff,
  43  0x32,0x0, 0x33,0xff, 0x34,0x0, 0x39,0xff,
  44  0x3a,0x0, 0x3b,0xff, 0x3c,0xff, 0x3d,0xff,
  45  0x3e,0x0, 0x3f,0xb0, 0x43,0xff, 0x44,0xff,
  46  0x46,0xff, 0x47,0x50, 0x4a,0x3, 0x4b,0xc0,
  47  0x4c,0x0, 0x4d,0x0, 0x4e,0xf, 0x5d,0x77,
  48  0x5c,0x0, 0x5f,0x33, 0x40,0x1};
  49
  50 static void pnp_enter_ext_func_mode(device_t dev)
  51 {
  52         outb(0x87, dev->path.u.pnp.port);
  53         outb(0x87, dev->path.u.pnp.port);
  54 }
  55
  56 static void pnp_exit_ext_func_mode(device_t dev)
  57 {
  58         outb(0xaa, dev->path.u.pnp.port);
  59 }
  60
  61 static void init_hwm(unsigned long base)
  62 {
  63         int i;
  64
  65         // initialize vt1211 hardware monitor registers, which are at 0xECXX
  66         for(i = 0; i < sizeof(vt1211hwmonitorinits); i += 2) {
  67                         outb(vt1211hwmonitorinits[i + 1],
  68                                         base + vt1211hwmonitorinits[i]);
  69         }
  70 }
  71
  72 static void vt1211_init(struct device *dev)
  73 {
  74         struct superio_via_vt1211_config *conf = dev->chip_info;
  75         struct resource *res0;
  76
  77         if (!dev->enabled) {
  78                 return;
  79         }
  80
  81         switch (dev->path.u.pnp.device) {
  82         case VT1211_SP1:
  83                 res0 = find_resource(dev, PNP_IDX_IO0);
  84                 init_uart8250(res0->base, &conf->com1);
  85                 break;
  86         case VT1211_SP2:
  87                 res0 = find_resource(dev, PNP_IDX_IO0);
  88                 init_uart8250(res0->base, &conf->com2);
  89                 break;
  90         case VT1211_HWM:
  91                 res0 = find_resource(dev, PNP_IDX_IO0);
  92                 init_hwm(res0->base);
  93                 break;
  94         default:
  95                 printk_info("vt1211 asked to initialise unknown device!\n");
  96         }
  97
  98         /* activate com2
  99         start_conf_pnp(3);
 100         write_pnp(0x60,0xbe);
 101         write_pnp(0x70,0x3);
 102         write_pnp(0xf0,0x02);
 103         write_pnp(0x30,0x01);
 104         end_conf_pnp();
 105
 106         // Activate the vt1211 hardware monitor
 107         start_conf_pnp(0x0b);
 108         write_pnp(0x60,0xec);
 109         write_pnp(0x30,1);
 110         end_conf_pnp(); */
 111
 112 }
 113
 114 void vt1211_pnp_enable_resources(device_t dev)
 115 {
 116         pnp_enter_ext_func_mode(dev);
 117         pnp_enable_resources(dev);
 118         pnp_exit_ext_func_mode(dev);
 119 }
 120
 121 void vt1211_pnp_set_resources(struct device *dev)
 122 {
 123         pnp_enter_ext_func_mode(dev);
 124         pnp_set_resources(dev);
 125         pnp_exit_ext_func_mode(dev);
 126 }
 127
 128 void vt1211_pnp_enable(device_t dev)
 129 {
 130         if (!dev->enabled) {
 131                 pnp_enter_ext_func_mode(dev);
 132                 pnp_set_logical_device(dev);
 133                 pnp_set_enable(dev, 0);
 134                 pnp_exit_ext_func_mode(dev);
 135         }
 136 }
 137
 138 struct device_operations ops = {
 139         .read_resources   = pnp_read_resources,
 140         .set_resources    = vt1211_pnp_set_resources,
 141         .enable_resources = vt1211_pnp_enable_resources,
 142         .enable           = vt1211_pnp_enable,
 143         .init             = vt1211_init,
 144 };
 145
 146 static struct pnp_info pnp_dev_info[] = {
 147         { &ops, VT1211_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
 148         { &ops, VT1211_PP,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
 149         { &ops, VT1211_SP1, PNP_IO0 | PNP_IRQ0,            { 0x07f8, 0}, },
 150         { &ops, VT1211_SP2, PNP_IO0 | PNP_IRQ0,            { 0x07f8, 0}, },
 151         { &ops, VT1211_HWM, PNP_IO0 , { 0xfff8, 0 }, },
 152 };
 153
 154 static void enable_dev(struct device *dev)
 155 {
 156         printk_debug("vt1211 enabling PNP devices.\n");
 157         pnp_enable_devices(dev,
 158                         &ops,
 159                         sizeof(pnp_dev_info) / sizeof(pnp_dev_info[0]),
 160                         pnp_dev_info);
 161 }
 162
 163 struct chip_operations superio_via_vt1211_ops = {
 164         CHIP_NAME("VIA vt1211")
 165         .enable_dev = enable_dev,
 166 };