src/ec/lenovo/h8/h8.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
   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; version 2 of the License.
   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, MA  02110-1301 USA
  18  */
  19
  20 #include <arch/io.h>
  21 #include <console/console.h>
  22 #include <device/device.h>
  23 #include <ec/acpi/ec.h>
  24 #include <device/pnp.h>
  25 #include <stdlib.h>
  26 #include "h8.h"
  27 #include "chip.h"
  28
  29 void h8_trackpoint_enable(int on)
  30 {
  31         ec_write(H8_TRACKPOINT_CTRL,
  32                  on ? H8_TRACKPOINT_ON : H8_TRACKPOINT_OFF);
  33
  34 }
  35
  36 void h8_wlan_enable(int on)
  37 {
  38         if (on)
  39                 ec_set_bit(0x3a, 5);
  40         else
  41                 ec_clr_bit(0x3a, 5);
  42 }
  43
  44 static void h8_log_ec_version(void)
  45 {
  46         unsigned char ecfw[9], c;
  47         u16 fwvh, fwvl;
  48         int i;
  49
  50         for(i = 0; i < 8; i++) {
  51                 c = ec_read(0xf0 + i);
  52                 if (c < 0x20 || c > 0x7f)
  53                         break;
  54                 ecfw[i] = c;
  55         }
  56         ecfw[i] = '\0';
  57
  58         fwvh = ec_read(0xe9);
  59         fwvl = ec_read(0xe8);
  60
  61         printk(BIOS_INFO, "EC Firmware ID %s, Version %d.%d%d%c\n", ecfw,
  62                fwvh >> 4, fwvh & 0x0f, fwvl >> 4, 0x41 + (fwvl & 0xf));
  63 }
  64
  65 void h8_set_audio_mute(int on)
  66 {
  67         if (on)
  68                 ec_clr_bit(0x3a, 0);
  69         else
  70                 ec_set_bit(0x3a, 1);
  71 }
  72
  73 void h8_enable_event(int event)
  74 {
  75         if (event < 0 || event > 127)
  76                 return;
  77
  78         ec_set_bit(0x10 + (event >> 3), event & 7);
  79 }
  80
  81 void h8_disable_event(int event)
  82 {
  83         if (event < 0 || event > 127)
  84                 return;
  85
  86         ec_clr_bit(0x10 + (event >> 3), event & 7);
  87
  88 }
  89
  90 int h8_ultrabay_device_present(void)
  91 {
  92         return ec_read(H8_STATUS1) & 0x5 ? 0 : 1;
  93 }
  94
  95 static void h8_enable(device_t dev)
  96 {
  97         struct ec_lenovo_h8_config *conf = dev->chip_info;
  98         h8_log_ec_version();
  99
 100         ec_write(H8_CONFIG0, conf->config0);
 101         ec_write(H8_CONFIG1, conf->config1);
 102         ec_write(H8_CONFIG2, conf->config2);
 103         ec_write(H8_CONFIG3, conf->config3);
 104
 105         ec_write(H8_SOUND_ENABLE0, conf->beepmask0);
 106         ec_write(H8_SOUND_ENABLE1, conf->beepmask1);
 107         ec_write(H8_SOUND_REPEAT, 0x00);
 108
 109         ec_write(0x10, conf->event0_enable);
 110         ec_write(0x11, conf->event1_enable);
 111         ec_write(0x12, conf->event2_enable);
 112         ec_write(0x13, conf->event3_enable);
 113         ec_write(0x14, conf->event4_enable);
 114         ec_write(0x15, conf->event5_enable);
 115         ec_write(0x16, conf->event6_enable);
 116         ec_write(0x17, conf->event7_enable);
 117         ec_write(0x18, conf->event8_enable);
 118         ec_write(0x19, conf->event9_enable);
 119         ec_write(0x1a, conf->eventa_enable);
 120         ec_write(0x1b, conf->eventb_enable);
 121         ec_write(0x1c, conf->eventc_enable);
 122         ec_write(0x1d, conf->eventd_enable);
 123         ec_write(0x1e, conf->evente_enable);
 124         ec_write(0x1f, conf->eventf_enable);
 125
 126         ec_write(H8_FAN_CONTROL, H8_FAN_CONTROL_AUTO);
 127         h8_wlan_enable(conf->wlan_enable);
 128         h8_trackpoint_enable(conf->trackpoint_enable);
 129
 130 }
 131
 132 struct chip_operations ec_lenovo_h8_ops = {
 133         CHIP_NAME("Lenovo H8 EC")
 134         .enable_dev = h8_enable
 135 };