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/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007-2009 coresystems GmbH
 * Copyright (C) 2011-2012 Google Inc.
 * Copyright (C) 2014 Vladimir Serbinenko
 *
 * 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 <types.h>
#include <string.h>
#include <device/device.h>
#include <device/pci_def.h>
#include <device/pci_ops.h>
#include <console/console.h>
#if CONFIG_VGA_ROM_RUN
#include <x86emu/x86emu.h>
#endif
#include <pc80/mc146818rtc.h>
#include <arch/acpi.h>
#include <arch/io.h>
#include <arch/interrupt.h>
#include <boot/coreboot_tables.h>
#include "hda_verb.h"
#include <southbridge/intel/bd82x6x/pch.h>
#include <smbios.h>
#include <device/pci.h>
#include <cbfs.h>
#include <pc80/keyboard.h>
#include <ec/lenovo/h8/h8.h>
#include <build.h>
#include <device/azalia_device.h>

void mainboard_suspend_resume(void)
{
	/* Call SMM finalize() handlers before resume */
	outb(0xcb, 0xb2);
}

#if CONFIG_VGA_ROM_RUN
static int int15_handler(void)
{
	int res = 0;

	printk(BIOS_DEBUG, "%s: INT15 function %04x!\n",
	       __func__, X86_AX);

	switch (X86_AX) {
	case 0x5f34:
		/*
		 * Set Panel Fitting Hook:
		 *  bit 2 = Graphics Stretching
		 *  bit 1 = Text Stretching
		 *  bit 0 = Centering (do not set with bit1 or bit2)
		 *  0     = video bios default
		 */
		X86_AX = 0x005f;
		X86_CL = 0x00;	/* Use video bios default */
		res = 1;
		break;
	case 0x5f35:
		/*
		 * Boot Display Device Hook:
		 *  bit 0 = CRT
		 *  bit 1 = TV (eDP)
		 *  bit 2 = EFP
		 *  bit 3 = LFP
		 *  bit 4 = CRT2
		 *  bit 5 = TV2 (eDP)
		 *  bit 6 = EFP2
		 *  bit 7 = LFP2
		 */
		X86_AX = 0x005f;
		X86_CX = 0x0000;	/* Use video bios default */
		res = 1;
		break;
	case 0x5f51:
		/*
		 * Hook to select active LFP configuration:
		 *  00h = No LVDS, VBIOS does not enable LVDS
		 *  01h = Int-LVDS, LFP driven by integrated LVDS decoder
		 *  02h = SVDO-LVDS, LFP driven by SVDO decoder
		 *  03h = eDP, LFP Driven by Int-DisplayPort encoder
		 */
		X86_AX = 0x005f;
		X86_CX = 0x0001;	/* Int-LVDS */
		res = 1;
		break;
	case 0x5f70:
		switch (X86_CH) {
		case 0:
			/* Get Mux */
			X86_AX = 0x005f;
			X86_CX = 0x0000;
			res = 1;
			break;
		case 1:
			/* Set Mux */
			X86_AX = 0x005f;
			X86_CX = 0x0000;
			res = 1;
			break;
		case 2:
			/* Get SG/Non-SG mode */
			X86_AX = 0x005f;
			X86_CX = 0x0000;
			res = 1;
			break;
		default:
			/* Interrupt was not handled */
			printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n",
			       X86_CH);
			break;
		}
		break;

	default:
		printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX);
		break;
	}
	return res;
}
#endif

const char *smbios_mainboard_bios_version(void)
{
	/* Satisfy thinkpad_acpi.  */
	if (strlen(CONFIG_LOCALVERSION))
		return "CBET4000 " CONFIG_LOCALVERSION;
	else
		return "CBET4000 " COREBOOT_VERSION;
}

/* Audio Setup */

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 = mainboard_pc_beep_verbs_size;

}

static void mainboard_init(device_t dev)
{
	RCBA32(0x38c8) = 0x00002005;
	RCBA32(0x38c4) = 0x00802005;
	RCBA32(0x38c0) = 0x00000007;

	/* This sneaked in here, because X201 SuperIO chip isn't really
	   connected to anything and hence we don't init it.
	 */
	pc_keyboard_init();

	/* Enable expresscard hotplug events.  */
	pci_write_config32(dev_find_slot(0, PCI_DEVFN(0x1c, 2)),
			   0xd8,
			   pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x1c, 2)), 0xd8)
			   | (1 << 30));
	pci_write_config16(dev_find_slot(0, PCI_DEVFN(0x1c, 2)),
			   0x42, 0x142);
}

static int mainboard_smbios_data(device_t dev, int *handle, unsigned long *current)
{
	int len;
	char tpec[] = "IBM ThinkPad Embedded Controller -[                 ]-";
	const char *oem_strings[] = {
		tpec,
	};

	h8_build_id_and_function_spec_version(tpec + 35, 17);
	len = smbios_write_type11(current, (*handle)++, oem_strings, ARRAY_SIZE(oem_strings));

	return len;
}

// mainboard_enable is executed as first thing after
// enumerate_buses().

static void mainboard_enable(device_t dev)
{
	dev->ops->init = mainboard_init;
	dev->ops->get_smbios_data = mainboard_smbios_data;

#if CONFIG_VGA_ROM_RUN
	/* Install custom int15 handler for VGA OPROM */
	mainboard_interrupt_handlers(0x15, &int15_handler);
#endif
	verb_setup();
}

void h8_mainboard_init_dock (void)
{
}

struct chip_operations mainboard_ops = {
	.enable_dev = mainboard_enable,
};