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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 secunet Security Networks AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <stdlib.h>
#include <arch/io.h>
//#include <pc80/mc146818rtc.h>
#include <device/device.h>
#include <console/console.h>
#if CONFIG_VGA_ROM_RUN
#include <arch/interrupt.h>
#include <x86emu/x86emu.h>
#endif
#include <pc80/keyboard.h>
#include <ec/acpi/ec.h>
#include "hda_verb.h"
#if CONFIG_GENERATE_ACPI_TABLES
#include "cstates.c" /* Include it, as the linker won't find
the overloaded weak function in there. */
#endif
#if CONFIG_VGA_ROM_RUN
static int int15_handler(void)
{
enum {
BOOT_DISPLAY_DEFAULT = 0,
BOOT_DISPLAY_CRT = (1 << 0),
BOOT_DISPLAY_TV = (1 << 1),
BOOT_DISPLAY_EFP = (1 << 2),
BOOT_DISPLAY_LFP = (1 << 3),
BOOT_DISPLAY_CRT2 = (1 << 4),
BOOT_DISPLAY_TV2 = (1 << 5),
BOOT_DISPLAY_EFP2 = (1 << 6),
BOOT_DISPLAY_LFP2 = (1 << 7),
};
enum {
PANEL_FIT_DEFAULT = 0,
PANEL_FIT_CENTERING = (1 << 0),
PANEL_FIT_TXT_STRETCH = (1 << 1),
PANEL_FIT_GFX_STRETCH = (1 << 2),
};
switch (X86_AX) {
case 0x5f34:
/* Set Panel Fitting Hook */
X86_AX = 0x005f;
X86_CX = PANEL_FIT_CENTERING;
break;
case 0x5f35:
/* Boot Display Device Hook */
X86_AX = 0x005f;
X86_CX = BOOT_DISPLAY_DEFAULT; /* Select automatically. */
break;
case 0x5f40:
/* Boot Panel Type Hook */
/* Contrary to what EMGD's user's guide says,
this _alters_ the behavior of the Video BIOS. */
/* LCD panel type is SIO GPIO40-43.
It's controlled by a DIP switch but was always
set to 4 while only values of 5 and 6 worked. */
X86_AX = 0x005f;
X86_CX = (inb(0x60f) & 0x0f) + 1;
break;
case 0x5f70:
/* Sandybridge boards return 0 here. */
case 0x5f14:
case 0x5f21:
case 0x5f22:
case 0x5f49:
/* No documentation found. */
default:
/* Interrupt was not handled. */
printk(BIOS_DEBUG,
"%s: AX=%04x BX=%04x CX=%04x DX=%04x\n", __func__,
X86_AX, X86_BX, X86_CX, X86_DX);
return 0;
}
/* Interrupt handled. */
return 1;
}
#endif
static void verb_setup(void)
{
cim_verb_data = mainboard_cim_verb_data;
cim_verb_data_size = sizeof(mainboard_cim_verb_data);
pc_beep_verbs = mainboard_pc_beep_verbs;
pc_beep_verbs_size = ARRAY_SIZE(mainboard_pc_beep_verbs);
}
static void ec_setup(void)
{
/* Thermal limits? Values are from ectool's ram dump. */
ec_write(0xd1, 0x57); /* CPUH */
ec_write(0xd2, 0xc9); /* CPUL */
ec_write(0xd4, 0x64); /* SYSH */
ec_write(0xd5, 0xc9); /* SYSL */
send_ec_command(0x04); /* Set_SMI_Enable */
send_ec_command(0xab); /* Set_ACPI_Disable */
send_ec_command(0xac); /* Clr_SYS_Flag? well, why not? */
send_ec_command(0xad); /* Set_Thml_Value */
}
static void mainboard_enable(device_t dev)
{
ec_setup();
verb_setup();
#if CONFIG_VGA_ROM_RUN
/* Install custom int15 handler for VGA OPROM */
mainboard_interrupt_handlers(0x15, &int15_handler);
#endif
/* We have no driver for the embedded controller since the firmware
does most of the job. Hence, initialize keyboards here. */
pc_keyboard_init(NULL);
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
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