/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _I8042_X86IA64IO_H
#define _I8042_X86IA64IO_H


#ifdef CONFIG_X86
#include <asm/x86_init.h>
#endif

/*
 * Names.
 */

#define I8042_KBD_PHYS_DESC "isa0060/serio0"
#define I8042_AUX_PHYS_DESC "isa0060/serio1"
#define I8042_MUX_PHYS_DESC "isa0060/serio%d"

/*
 * IRQs.
 */

#if defined(__ia64__)
# define I8042_MAP_IRQ(x)       isa_irq_to_vector((x))
#else
# define I8042_MAP_IRQ(x)       (x)
#endif

#define I8042_KBD_IRQ   i8042_kbd_irq
#define I8042_AUX_IRQ   i8042_aux_irq

static int i8042_kbd_irq;
static int i8042_aux_irq;

/*
 * Register numbers.
 */

#define I8042_COMMAND_REG       i8042_command_reg
#define I8042_STATUS_REG        i8042_command_reg
#define I8042_DATA_REG          i8042_data_reg

static int i8042_command_reg = 0x64;
static int i8042_data_reg = 0x60;


static inline int i8042_read_data(void)
{
        return inb(I8042_DATA_REG);
}

static inline int i8042_read_status(void)
{
        return inb(I8042_STATUS_REG);
}

static inline void i8042_write_data(int val)
{
        outb(val, I8042_DATA_REG);
}

static inline void i8042_write_command(int val)
{
        outb(val, I8042_COMMAND_REG);
}

#ifdef CONFIG_X86

#include <linux/dmi.h>

static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
        {
                /*
                 * Arima-Rioworks HDAMB -
                 * AUX LOOP command does not raise AUX IRQ
                 */
                .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
                        DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
                        DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
                },
        },
        {
                /* ASUS G1S */
                .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
                        DMI_MATCH(DMI_BOARD_NAME, "G1S"),
                        DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
                },
        },
        {
                /* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
                .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
                        DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
                        DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
                        DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
                        DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
                },
        },
        {
                /* Dell Embedded Box PC 3000 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
                },
        },
        {
                /* OQO Model 01 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
                },
        },
        {
                /* ULI EV4873 - AUX LOOP does not work properly */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
                },
        },
        {
                /* Microsoft Virtual Machine */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
                },
        },
        {
                /* Medion MAM 2070 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
                },
        },
        {
                /* Medion Akoya E7225 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Akoya E7225"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
                },
        },
        {
                /* Blue FB5601 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "blue"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
                },
        },
        {
                /* Gigabyte M912 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
                },
        },
        {
                /* Gigabyte M1022M netbook */
                .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
                        DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
                        DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
                },
        },
        {
                /* Gigabyte Spring Peak - defines wrong chassis type */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
                },
        },
        {
                /* Gigabyte T1005 - defines wrong chassis type ("Other") */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
                },
        },
        {
                /* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
                },
        },
        { }
};

/*
 * Some Fujitsu notebooks are having trouble with touchpads if
 * active multiplexing mode is activated. Luckily they don't have
 * external PS/2 ports so we can safely disable it.
 * ... apparently some Toshibas don't like MUX mode either and
 * die horrible death on reboot.
 */
static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
        {
                /* Fujitsu Lifebook P7010/P7010D */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
                },
        },
        {
                /* Fujitsu Lifebook P7010 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
                },
        },
        {
                /* Fujitsu Lifebook P5020D */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
                },
        },
        {
                /* Fujitsu Lifebook S2000 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
                },
        },
        {
                /* Fujitsu Lifebook S6230 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
                },
        },
        {
                /* Fujitsu Lifebook U745 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
                },
        },
        {
                /* Fujitsu T70H */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
                },
        },
        {
                /* Fujitsu-Siemens Lifebook T3010 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
                },
        },
        {
                /* Fujitsu-Siemens Lifebook E4010 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
                },
        },
        {
                /* Fujitsu-Siemens Amilo Pro 2010 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
                },
        },
        {
                /* Fujitsu-Siemens Amilo Pro 2030 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
                },
        },
        {
                /*
                 * No data is coming from the touchscreen unless KBC
                 * is in legacy mode.
                 */
                /* Panasonic CF-29 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
                },
        },
        {
                /*
                 * HP Pavilion DV4017EA -
                 * errors on MUX ports are reported without raising AUXDATA
                 * causing "spurious NAK" messages.
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
                },
        },
        {
                /*
                 * HP Pavilion ZT1000 -
                 * like DV4017EA does not raise AUXERR for errors on MUX ports.
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
                },
        },
        {
                /*
                 * HP Pavilion DV4270ca -
                 * like DV4017EA does not raise AUXERR for errors on MUX ports.
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
                },
        },
        {
                /* Sharp Actius MM20 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
                },
        },
        {
                /* Sony Vaio FS-115b */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
                },
        },
        {
                /*
                 * Sony Vaio FZ-240E -
                 * reset and GET ID commands issued via KBD port are
                 * sometimes being delivered to AUX3.
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
                },
        },
        {
                /*
                 * Most (all?) VAIOs do not have external PS/2 ports nor
                 * they implement active multiplexing properly, and
                 * MUX discovery usually messes up keyboard/touchpad.
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
                        DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
                },
        },
        {
                /* Amoi M636/A737 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
                },
        },
        {
                /* Lenovo 3000 n100 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
                },
        },
        {
                /* Lenovo XiaoXin Air 12 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
                },
        },
        {
                /* Acer Aspire 5710 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
                },
        },
        {
                /* Acer Aspire 7738 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
                },
        },
        {
                /* Gericom Bellagio */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
                },
        },
        {
                /* IBM 2656 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
                },
        },
        {
                /* Dell XPS M1530 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
                },
        },
        {
                /* Compal HEL80I */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
                },
        },
        {
                /* Dell Vostro 1510 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
                },
        },
        {
                /* Acer Aspire 5536 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
                },
        },
        {
                /* Dell Vostro V13 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
                },
        },
        {
                /* Newer HP Pavilion dv4 models */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
                },
        },
        {
                /* Asus X450LCP */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
                },
        },
        {
                /* Avatar AVIU-145A6 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
                },
        },
        {
                /* TUXEDO BU1406 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
                },
        },
        {
                /* Lenovo LaVie Z */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
                },
        },
        {
                /*
                 * Acer Aspire 5738z
                 * Touchpad stops working in mux mode when dis- + re-enabled
                 * with the touchpad enable/disable toggle hotkey
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
                },
        },
        { }
};

static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
        {
                /*
                 * Sony Vaio VGN-CS series require MUX or the touch sensor
                 * buttons will disturb touchpad operation
                 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
                },
        },
        { }
};

/*
 * On some Asus laptops, just running self tests cause problems.
 */
static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
                        DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
                },
        },
        { }
};
static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
        {
                /* MSI Wind U-100 */
                .matches = {
                        DMI_MATCH(DMI_BOARD_NAME, "U-100"),
                        DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
                },
        },
        {
                /* LG Electronics X110 */
                .matches = {
                        DMI_MATCH(DMI_BOARD_NAME, "X110"),
                        DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
                },
        },
        {
                /* Acer Aspire One 150 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
                },
        },
        {
                /* Advent 4211 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
                },
        },
        {
                /* Medion Akoya Mini E1210 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
                },
        },
        {
                /* Medion Akoya E1222 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
                },
        },
        {
                /* Mivvy M310 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
                },
        },
        {
                /* Dell Vostro 1320 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
                },
        },
        {
                /* Dell Vostro 1520 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
                },
        },
        {
                /* Dell Vostro 1720 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
                },
        },
        {
                /* Lenovo Ideapad U455 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
                },
        },
        {
                /* Lenovo ThinkPad L460 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
                },
        },
        {
                /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
                },
        },
        {
                /* Lenovo ThinkPad Twist S230u */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
                },
        },
        { }
};

#ifdef CONFIG_PNP
static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
        {
                /* Intel MBO Desktop D845PESV */
                .matches = {
                        DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
                        DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
                },
        },
        {
                /*
                 * Intel NUC D54250WYK - does not have i8042 controller but
                 * declares PS/2 devices in DSDT.
                 */
                .matches = {
                        DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
                        DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
                },
        },
        {
                /* MSI Wind U-100 */
                .matches = {
                        DMI_MATCH(DMI_BOARD_NAME, "U-100"),
                        DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
                },
        },
        { }
};

static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
        {
                .matches = {
                        DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
                },
        },
        {
                .matches = {
                        DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
                },
        },
        { }
};
#endif

static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
        {
                /* Dell Vostro V13 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
                },
        },
        {
                /* Newer HP Pavilion dv4 models */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
                },
        },
        {
                /* Fujitsu A544 laptop */
                /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
                },
        },
        {
                /* Fujitsu AH544 laptop */
                /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
                },
        },
        {
                /* Fujitsu U574 laptop */
                /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
                },
        },
        {
                /* Fujitsu UH554 laptop */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
                },
        },
        { }
};

/*
 * Some Wistron based laptops need us to explicitly enable the 'Dritek
 * keyboard extension' to make their extra keys start generating scancodes.
 * Originally, this was just confined to older laptops, but a few Acer laptops
 * have turned up in 2007 that also need this again.
 */
static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
        {
                /* Acer Aspire 5100 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
                },
        },
        {
                /* Acer Aspire 5610 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
                },
        },
        {
                /* Acer Aspire 5630 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
                },
        },
        {
                /* Acer Aspire 5650 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
                },
        },
        {
                /* Acer Aspire 5680 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
                },
        },
        {
                /* Acer Aspire 5720 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
                },
        },
        {
                /* Acer Aspire 9110 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
                },
        },
        {
                /* Acer TravelMate 660 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
                },
        },
        {
                /* Acer TravelMate 2490 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
                },
        },
        {
                /* Acer TravelMate 4280 */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
                },
        },
        { }
};

/*
 * Some laptops need keyboard reset before probing for the trackpad to get
 * it detected, initialised & finally work.
 */
static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
        {
                /* Gigabyte P35 v2 - Elantech touchpad */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
                },
        },
                {
                /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
                },
        },
        {
                /* Gigabyte P34 - Elantech touchpad */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
                },
        },
        {
                /* Gigabyte P57 - Elantech touchpad */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
                },
        },
        {
                /* Schenker XMG C504 - Elantech touchpad */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
                        DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
                },
        },
        { }
};

#endif /* CONFIG_X86 */

#ifdef CONFIG_PNP
#include <linux/pnp.h>

static bool i8042_pnp_kbd_registered;
static unsigned int i8042_pnp_kbd_devices;
static bool i8042_pnp_aux_registered;
static unsigned int i8042_pnp_aux_devices;

static int i8042_pnp_command_reg;
static int i8042_pnp_data_reg;
static int i8042_pnp_kbd_irq;
static int i8042_pnp_aux_irq;

static char i8042_pnp_kbd_name[32];
static char i8042_pnp_aux_name[32];

static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
{
        strlcpy(dst, "PNP:", dst_size);

        while (id) {
                strlcat(dst, " ", dst_size);
                strlcat(dst, id->id, dst_size);
                id = id->next;
        }
}

static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
{
        if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
                i8042_pnp_data_reg = pnp_port_start(dev,0);

        if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
                i8042_pnp_command_reg = pnp_port_start(dev, 1);

        if (pnp_irq_valid(dev,0))
                i8042_pnp_kbd_irq = pnp_irq(dev, 0);

        strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
        if (strlen(pnp_dev_name(dev))) {
                strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
                strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
        }
        i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
                               sizeof(i8042_kbd_firmware_id));
        i8042_kbd_fwnode = dev_fwnode(&dev->dev);

        /* Keyboard ports are always supposed to be wakeup-enabled */
        device_set_wakeup_enable(&dev->dev, true);

        i8042_pnp_kbd_devices++;
        return 0;
}

static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
{
        if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
                i8042_pnp_data_reg = pnp_port_start(dev,0);

        if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
                i8042_pnp_command_reg = pnp_port_start(dev, 1);

        if (pnp_irq_valid(dev, 0))
                i8042_pnp_aux_irq = pnp_irq(dev, 0);

        strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
        if (strlen(pnp_dev_name(dev))) {
                strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
                strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
        }
        i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
                               sizeof(i8042_aux_firmware_id));

        i8042_pnp_aux_devices++;
        return 0;
}

static const struct pnp_device_id pnp_kbd_devids[] = {
        { .id = "PNP0300", .driver_data = 0 },
        { .id = "PNP0301", .driver_data = 0 },
        { .id = "PNP0302", .driver_data = 0 },
        { .id = "PNP0303", .driver_data = 0 },
        { .id = "PNP0304", .driver_data = 0 },
        { .id = "PNP0305", .driver_data = 0 },
        { .id = "PNP0306", .driver_data = 0 },
        { .id = "PNP0309", .driver_data = 0 },
        { .id = "PNP030a", .driver_data = 0 },
        { .id = "PNP030b", .driver_data = 0 },
        { .id = "PNP0320", .driver_data = 0 },
        { .id = "PNP0343", .driver_data = 0 },
        { .id = "PNP0344", .driver_data = 0 },

        { .id = "PNP0345", .driver_data = 0 },
        { .id = "CPQA0D7", .driver_data = 0 },
        { .id = "", },
};
MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);

static struct pnp_driver i8042_pnp_kbd_driver = {
        .name           = "i8042 kbd",
        .id_table       = pnp_kbd_devids,
        .probe          = i8042_pnp_kbd_probe,
        .driver         = {
                .probe_type = PROBE_FORCE_SYNCHRONOUS,
                .suppress_bind_attrs = true,
        },
};

static const struct pnp_device_id pnp_aux_devids[] = {
        { .id = "AUI0200", .driver_data = 0 },
        { .id = "FJC6000", .driver_data = 0 },
        { .id = "FJC6001", .driver_data = 0 },
        { .id = "PNP0f03", .driver_data = 0 },
        { .id = "PNP0f0b", .driver_data = 0 },
        { .id = "PNP0f0e", .driver_data = 0 },
        { .id = "PNP0f12", .driver_data = 0 },
        { .id = "PNP0f13", .driver_data = 0 },
        { .id = "PNP0f19", .driver_data = 0 },
        { .id = "PNP0f1c", .driver_data = 0 },
        { .id = "SYN0801", .driver_data = 0 },
        { .id = "", },
};
MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);

static struct pnp_driver i8042_pnp_aux_driver = {
        .name           = "i8042 aux",
        .id_table       = pnp_aux_devids,
        .probe          = i8042_pnp_aux_probe,
        .driver         = {
                .probe_type = PROBE_FORCE_SYNCHRONOUS,
                .suppress_bind_attrs = true,
        },
};

static void i8042_pnp_exit(void)
{
        if (i8042_pnp_kbd_registered) {
                i8042_pnp_kbd_registered = false;
                pnp_unregister_driver(&i8042_pnp_kbd_driver);
        }

        if (i8042_pnp_aux_registered) {
                i8042_pnp_aux_registered = false;
                pnp_unregister_driver(&i8042_pnp_aux_driver);
        }
}

static int __init i8042_pnp_init(void)
{
        char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
        bool pnp_data_busted = false;
        int err;

#ifdef CONFIG_X86
        if (dmi_check_system(i8042_dmi_nopnp_table))
                i8042_nopnp = true;
#endif

        if (i8042_nopnp) {
                pr_info("PNP detection disabled\n");
                return 0;
        }

        err = pnp_register_driver(&i8042_pnp_kbd_driver);
        if (!err)
                i8042_pnp_kbd_registered = true;

        err = pnp_register_driver(&i8042_pnp_aux_driver);
        if (!err)
                i8042_pnp_aux_registered = true;

        if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
                i8042_pnp_exit();
#if defined(__ia64__)
                return -ENODEV;
#else
                pr_info("PNP: No PS/2 controller found.\n");
                if (x86_platform.legacy.i8042 !=
                                X86_LEGACY_I8042_EXPECTED_PRESENT)
                        return -ENODEV;
                pr_info("Probing ports directly.\n");
                return 0;
#endif
        }

        if (i8042_pnp_kbd_devices)
                snprintf(kbd_irq_str, sizeof(kbd_irq_str),
                        "%d", i8042_pnp_kbd_irq);
        if (i8042_pnp_aux_devices)
                snprintf(aux_irq_str, sizeof(aux_irq_str),
                        "%d", i8042_pnp_aux_irq);

        pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
                i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
                i8042_pnp_aux_name,
                i8042_pnp_data_reg, i8042_pnp_command_reg,
                kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
                aux_irq_str);

#if defined(__ia64__)
        if (!i8042_pnp_kbd_devices)
                i8042_nokbd = true;
        if (!i8042_pnp_aux_devices)
                i8042_noaux = true;
#endif

        if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
              i8042_pnp_data_reg != i8042_data_reg) ||
            !i8042_pnp_data_reg) {
                pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
                        i8042_pnp_data_reg, i8042_data_reg);
                i8042_pnp_data_reg = i8042_data_reg;
                pnp_data_busted = true;
        }

        if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
              i8042_pnp_command_reg != i8042_command_reg) ||
            !i8042_pnp_command_reg) {
                pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
                        i8042_pnp_command_reg, i8042_command_reg);
                i8042_pnp_command_reg = i8042_command_reg;
                pnp_data_busted = true;
        }

        if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
                pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
                        i8042_kbd_irq);
                i8042_pnp_kbd_irq = i8042_kbd_irq;
                pnp_data_busted = true;
        }

        if (!i8042_noaux && !i8042_pnp_aux_irq) {
                if (!pnp_data_busted && i8042_pnp_kbd_irq) {
                        pr_warn("PNP: PS/2 appears to have AUX port disabled, "
                                "if this is incorrect please boot with i8042.nopnp\n");
                        i8042_noaux = true;
                } else {
                        pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
                                i8042_aux_irq);
                        i8042_pnp_aux_irq = i8042_aux_irq;
                }
        }

        i8042_data_reg = i8042_pnp_data_reg;
        i8042_command_reg = i8042_pnp_command_reg;
        i8042_kbd_irq = i8042_pnp_kbd_irq;
        i8042_aux_irq = i8042_pnp_aux_irq;

#ifdef CONFIG_X86
        i8042_bypass_aux_irq_test = !pnp_data_busted &&
                                    dmi_check_system(i8042_dmi_laptop_table);
#endif

        return 0;
}

#else  /* !CONFIG_PNP */
static inline int i8042_pnp_init(void) { return 0; }
static inline void i8042_pnp_exit(void) { }
#endif /* CONFIG_PNP */

static int __init i8042_platform_init(void)
{
        int retval;

#ifdef CONFIG_X86
        u8 a20_on = 0xdf;
        /* Just return if platform does not have i8042 controller */
        if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
                return -ENODEV;
#endif

/*
 * On ix86 platforms touching the i8042 data register region can do really
 * bad things. Because of this the region is always reserved on ix86 boxes.
 *
 *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
 *              return -EBUSY;
 */

        i8042_kbd_irq = I8042_MAP_IRQ(1);
        i8042_aux_irq = I8042_MAP_IRQ(12);

        retval = i8042_pnp_init();
        if (retval)
                return retval;

#if defined(__ia64__)
        i8042_reset = I8042_RESET_ALWAYS;
#endif

#ifdef CONFIG_X86
        /* Honor module parameter when value is not default */
        if (i8042_reset == I8042_RESET_DEFAULT) {
                if (dmi_check_system(i8042_dmi_reset_table))
                        i8042_reset = I8042_RESET_ALWAYS;

                if (dmi_check_system(i8042_dmi_noselftest_table))
                        i8042_reset = I8042_RESET_NEVER;
        }

        if (dmi_check_system(i8042_dmi_noloop_table))
                i8042_noloop = true;

        if (dmi_check_system(i8042_dmi_nomux_table))
                i8042_nomux = true;

        if (dmi_check_system(i8042_dmi_forcemux_table))
                i8042_nomux = false;

        if (dmi_check_system(i8042_dmi_notimeout_table))
                i8042_notimeout = true;

        if (dmi_check_system(i8042_dmi_dritek_table))
                i8042_dritek = true;

        if (dmi_check_system(i8042_dmi_kbdreset_table))
                i8042_kbdreset = true;

        /*
         * A20 was already enabled during early kernel init. But some buggy
         * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
         * resume from S3. So we do it here and hope that nothing breaks.
         */
        i8042_command(&a20_on, 0x10d1);
        i8042_command(NULL, 0x00ff);    /* Null command for SMM firmware */
#endif /* CONFIG_X86 */

        return retval;
}

static inline void i8042_platform_exit(void)
{
        i8042_pnp_exit();
}

#endif /* _I8042_X86IA64IO_H */