/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
 * Copyright (c) 2015 Nahanni Systems Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>

#include <machine/vmm.h>
#include <machine/vmm_snapshot.h>

#include <vmmapi.h>

#include <assert.h>
#include <errno.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <pthread_np.h>

#include "acpi.h"
#include "atkbdc.h"
#include "inout.h"
#include "pci_emul.h"
#include "pci_irq.h"
#include "pci_lpc.h"
#include "ps2kbd.h"
#include "ps2mouse.h"

#define KBD_DATA_PORT           0x60

#define KBD_STS_CTL_PORT        0x64

#define KBDC_RESET              0xfe

#define KBD_DEV_IRQ             1
#define AUX_DEV_IRQ             12

/* controller commands */
#define KBDC_SET_COMMAND_BYTE   0x60
#define KBDC_GET_COMMAND_BYTE   0x20
#define KBDC_DISABLE_AUX_PORT   0xa7
#define KBDC_ENABLE_AUX_PORT    0xa8
#define KBDC_TEST_AUX_PORT      0xa9
#define KBDC_TEST_CTRL          0xaa
#define KBDC_TEST_KBD_PORT      0xab
#define KBDC_DISABLE_KBD_PORT   0xad
#define KBDC_ENABLE_KBD_PORT    0xae
#define KBDC_READ_INPORT        0xc0
#define KBDC_READ_OUTPORT       0xd0
#define KBDC_WRITE_OUTPORT      0xd1
#define KBDC_WRITE_KBD_OUTBUF   0xd2
#define KBDC_WRITE_AUX_OUTBUF   0xd3
#define KBDC_WRITE_TO_AUX       0xd4

/* controller command byte (set by KBDC_SET_COMMAND_BYTE) */
#define KBD_TRANSLATION         0x40
#define KBD_SYS_FLAG_BIT        0x04
#define KBD_DISABLE_KBD_PORT    0x10
#define KBD_DISABLE_AUX_PORT    0x20
#define KBD_ENABLE_AUX_INT      0x02
#define KBD_ENABLE_KBD_INT      0x01
#define KBD_KBD_CONTROL_BITS    (KBD_DISABLE_KBD_PORT | KBD_ENABLE_KBD_INT)
#define KBD_AUX_CONTROL_BITS    (KBD_DISABLE_AUX_PORT | KBD_ENABLE_AUX_INT)

/* controller status bits */
#define KBDS_KBD_BUFFER_FULL    0x01
#define KBDS_SYS_FLAG           0x04
#define KBDS_CTRL_FLAG          0x08
#define KBDS_AUX_BUFFER_FULL    0x20

/* controller output port */
#define KBDO_KBD_OUTFULL        0x10
#define KBDO_AUX_OUTFULL        0x20

#define RAMSZ                   32
#define FIFOSZ                  15
#define CTRL_CMD_FLAG           0x8000

struct kbd_dev {
        bool    irq_active;
        int     irq;

        uint8_t buffer[FIFOSZ];
        int     brd, bwr;
        int     bcnt;
};

struct aux_dev {
        bool    irq_active;
        int     irq;
};

struct atkbdc_softc {
        struct vmctx *ctx;
        pthread_mutex_t mtx;

        struct ps2kbd_softc     *ps2kbd_sc;
        struct ps2mouse_softc   *ps2mouse_sc;

        uint8_t status;         /* status register */
        uint8_t outport;        /* controller output port */
        uint8_t ram[RAMSZ];     /* byte0 = controller config */

        uint32_t curcmd;        /* current command for next byte */
        uint32_t  ctrlbyte;

        struct kbd_dev kbd;
        struct aux_dev aux;
};

#ifdef BHYVE_SNAPSHOT
static struct atkbdc_softc *atkbdc_sc = NULL;
#endif

static void
atkbdc_assert_kbd_intr(struct atkbdc_softc *sc)
{
        if ((sc->ram[0] & KBD_ENABLE_KBD_INT) != 0) {
                sc->kbd.irq_active = true;
                vm_isa_pulse_irq(sc->ctx, sc->kbd.irq, sc->kbd.irq);
        }
}

static void
atkbdc_assert_aux_intr(struct atkbdc_softc *sc)
{
        if ((sc->ram[0] & KBD_ENABLE_AUX_INT) != 0) {
                sc->aux.irq_active = true;
                vm_isa_pulse_irq(sc->ctx, sc->aux.irq, sc->aux.irq);
        }
}

static int
atkbdc_kbd_queue_data(struct atkbdc_softc *sc, uint8_t val)
{
        assert(pthread_mutex_isowned_np(&sc->mtx));

        if (sc->kbd.bcnt < FIFOSZ) {
                sc->kbd.buffer[sc->kbd.bwr] = val;
                sc->kbd.bwr = (sc->kbd.bwr + 1) % FIFOSZ;
                sc->kbd.bcnt++;
                sc->status |= KBDS_KBD_BUFFER_FULL;
                sc->outport |= KBDO_KBD_OUTFULL;
        } else {
                printf("atkbd data buffer full\n");
        }

        return (sc->kbd.bcnt < FIFOSZ);
}

static void
atkbdc_kbd_read(struct atkbdc_softc *sc)
{
        const uint8_t translation[256] = {
                0xff, 0x43, 0x41, 0x3f, 0x3d, 0x3b, 0x3c, 0x58,
                0x64, 0x44, 0x42, 0x40, 0x3e, 0x0f, 0x29, 0x59,
                0x65, 0x38, 0x2a, 0x70, 0x1d, 0x10, 0x02, 0x5a,
                0x66, 0x71, 0x2c, 0x1f, 0x1e, 0x11, 0x03, 0x5b,
                0x67, 0x2e, 0x2d, 0x20, 0x12, 0x05, 0x04, 0x5c,
                0x68, 0x39, 0x2f, 0x21, 0x14, 0x13, 0x06, 0x5d,
                0x69, 0x31, 0x30, 0x23, 0x22, 0x15, 0x07, 0x5e,
                0x6a, 0x72, 0x32, 0x24, 0x16, 0x08, 0x09, 0x5f,
                0x6b, 0x33, 0x25, 0x17, 0x18, 0x0b, 0x0a, 0x60,
                0x6c, 0x34, 0x35, 0x26, 0x27, 0x19, 0x0c, 0x61,
                0x6d, 0x73, 0x28, 0x74, 0x1a, 0x0d, 0x62, 0x6e,
                0x3a, 0x36, 0x1c, 0x1b, 0x75, 0x2b, 0x63, 0x76,
                0x55, 0x56, 0x77, 0x78, 0x79, 0x7a, 0x0e, 0x7b,
                0x7c, 0x4f, 0x7d, 0x4b, 0x47, 0x7e, 0x7f, 0x6f,
                0x52, 0x53, 0x50, 0x4c, 0x4d, 0x48, 0x01, 0x45,
                0x57, 0x4e, 0x51, 0x4a, 0x37, 0x49, 0x46, 0x54,
                0x80, 0x81, 0x82, 0x41, 0x54, 0x85, 0x86, 0x87,
                0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
                0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
                0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
                0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
                0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
                0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
                0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
                0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
                0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
                0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
                0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
                0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
                0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
                0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
                0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
        };
        uint8_t val;
        uint8_t release = 0;

        assert(pthread_mutex_isowned_np(&sc->mtx));

        if (sc->ram[0] & KBD_TRANSLATION) {
                while (ps2kbd_read(sc->ps2kbd_sc, &val) != -1) {
                        if (val == 0xf0) {
                                release = 0x80;
                                continue;
                        } else {
                                val = translation[val] | release;
                        }
                        atkbdc_kbd_queue_data(sc, val);
                        break;
                }
        } else {
                while (sc->kbd.bcnt < FIFOSZ) {
                        if (ps2kbd_read(sc->ps2kbd_sc, &val) != -1)
                                atkbdc_kbd_queue_data(sc, val);
                        else
                                break;
                }
        }

        if (((sc->ram[0] & KBD_DISABLE_AUX_PORT) ||
            ps2mouse_fifocnt(sc->ps2mouse_sc) == 0) && sc->kbd.bcnt > 0)
                atkbdc_assert_kbd_intr(sc);
}

static void
atkbdc_aux_poll(struct atkbdc_softc *sc)
{
        if (ps2mouse_fifocnt(sc->ps2mouse_sc) > 0) {
                sc->status |= KBDS_AUX_BUFFER_FULL | KBDS_KBD_BUFFER_FULL;
                sc->outport |= KBDO_AUX_OUTFULL;
                atkbdc_assert_aux_intr(sc);
        }
}

static void
atkbdc_kbd_poll(struct atkbdc_softc *sc)
{
        assert(pthread_mutex_isowned_np(&sc->mtx));

        atkbdc_kbd_read(sc);
}

static void
atkbdc_poll(struct atkbdc_softc *sc)
{
        atkbdc_aux_poll(sc);
        atkbdc_kbd_poll(sc);
}

static void
atkbdc_dequeue_data(struct atkbdc_softc *sc, uint8_t *buf)
{
        assert(pthread_mutex_isowned_np(&sc->mtx));

        if (ps2mouse_read(sc->ps2mouse_sc, buf) == 0) {
                if (ps2mouse_fifocnt(sc->ps2mouse_sc) == 0) {
                        if (sc->kbd.bcnt == 0)
                                sc->status &= ~(KBDS_AUX_BUFFER_FULL |
                                                KBDS_KBD_BUFFER_FULL);
                        else
                                sc->status &= ~(KBDS_AUX_BUFFER_FULL);
                        sc->outport &= ~KBDO_AUX_OUTFULL;
                }

                atkbdc_poll(sc);
                return;
        }

        if (sc->kbd.bcnt > 0) {
                *buf = sc->kbd.buffer[sc->kbd.brd];
                sc->kbd.brd = (sc->kbd.brd + 1) % FIFOSZ;
                sc->kbd.bcnt--;
                if (sc->kbd.bcnt == 0) {
                        sc->status &= ~KBDS_KBD_BUFFER_FULL;
                        sc->outport &= ~KBDO_KBD_OUTFULL;
                }

                atkbdc_poll(sc);
        }

        if (ps2mouse_fifocnt(sc->ps2mouse_sc) == 0 && sc->kbd.bcnt == 0) {
                sc->status &= ~(KBDS_AUX_BUFFER_FULL | KBDS_KBD_BUFFER_FULL);
        }
}

static int
atkbdc_data_handler(struct vmctx *ctx __unused, int in,
    int port __unused, int bytes, uint32_t *eax, void *arg)
{
        struct atkbdc_softc *sc;
        uint8_t buf;
        int retval;

        if (bytes != 1)
                return (-1);
        sc = arg;
        retval = 0;

        pthread_mutex_lock(&sc->mtx);
        if (in) {
                sc->curcmd = 0;
                if (sc->ctrlbyte != 0) {
                        *eax = sc->ctrlbyte & 0xff;
                        sc->ctrlbyte = 0;
                } else {
                        /* read device buffer; includes kbd cmd responses */
                        atkbdc_dequeue_data(sc, &buf);
                        *eax = buf;
                }

                sc->status &= ~KBDS_CTRL_FLAG;
                pthread_mutex_unlock(&sc->mtx);
                return (retval);
        }

        if (sc->status & KBDS_CTRL_FLAG) {
                /*
                 * Command byte for the controller.
                 */
                switch (sc->curcmd) {
                case KBDC_SET_COMMAND_BYTE:
                        sc->ram[0] = *eax;
                        if (sc->ram[0] & KBD_SYS_FLAG_BIT)
                                sc->status |= KBDS_SYS_FLAG;
                        else
                                sc->status &= ~KBDS_SYS_FLAG;
                        break;
                case KBDC_WRITE_OUTPORT:
                        sc->outport = *eax;
                        break;
                case KBDC_WRITE_TO_AUX:
                        ps2mouse_write(sc->ps2mouse_sc, *eax, 0);
                        atkbdc_poll(sc);
                        break;
                case KBDC_WRITE_KBD_OUTBUF:
                        atkbdc_kbd_queue_data(sc, *eax);
                        break;
                case KBDC_WRITE_AUX_OUTBUF:
                        ps2mouse_write(sc->ps2mouse_sc, *eax, 1);
                        sc->status |= (KBDS_AUX_BUFFER_FULL | KBDS_KBD_BUFFER_FULL);
                        atkbdc_aux_poll(sc);
                        break;
                default:
                        /* write to particular RAM byte */
                        if (sc->curcmd >= 0x61 && sc->curcmd <= 0x7f) {
                                int byten;

                                byten = (sc->curcmd - 0x60) & 0x1f;
                                sc->ram[byten] = *eax & 0xff;
                        }
                        break;
                }

                sc->curcmd = 0;
                sc->status &= ~KBDS_CTRL_FLAG;

                pthread_mutex_unlock(&sc->mtx);
                return (retval);
        }

        /*
         * Data byte for the device.
         */
        ps2kbd_write(sc->ps2kbd_sc, *eax);
        atkbdc_poll(sc);

        pthread_mutex_unlock(&sc->mtx);

        return (retval);
}

static int
atkbdc_sts_ctl_handler(struct vmctx *ctx, int in,
    int port __unused, int bytes, uint32_t *eax, void *arg)
{
        struct atkbdc_softc *sc;
        int     error, retval;

        if (bytes != 1)
                return (-1);

        sc = arg;
        retval = 0;

        pthread_mutex_lock(&sc->mtx);

        if (in) {
                /* read status register */
                *eax = sc->status;
                pthread_mutex_unlock(&sc->mtx);
                return (retval);
        }


        sc->curcmd = 0;
        sc->status |= KBDS_CTRL_FLAG;
        sc->ctrlbyte = 0;

        switch (*eax) {
        case KBDC_GET_COMMAND_BYTE:
                sc->ctrlbyte = CTRL_CMD_FLAG | sc->ram[0];
                break;
        case KBDC_TEST_CTRL:
                sc->ctrlbyte = CTRL_CMD_FLAG | 0x55;
                break;
        case KBDC_TEST_AUX_PORT:
        case KBDC_TEST_KBD_PORT:
                sc->ctrlbyte = CTRL_CMD_FLAG | 0;
                break;
        case KBDC_READ_INPORT:
                sc->ctrlbyte = CTRL_CMD_FLAG | 0;
                break;
        case KBDC_READ_OUTPORT:
                sc->ctrlbyte = CTRL_CMD_FLAG | sc->outport;
                break;
        case KBDC_SET_COMMAND_BYTE:
        case KBDC_WRITE_OUTPORT:
        case KBDC_WRITE_KBD_OUTBUF:
        case KBDC_WRITE_AUX_OUTBUF:
                sc->curcmd = *eax;
                break;
        case KBDC_DISABLE_KBD_PORT:
                sc->ram[0] |= KBD_DISABLE_KBD_PORT;
                break;
        case KBDC_ENABLE_KBD_PORT:
                sc->ram[0] &= ~KBD_DISABLE_KBD_PORT;
                if (sc->kbd.bcnt > 0)
                        sc->status |= KBDS_KBD_BUFFER_FULL;
                atkbdc_poll(sc);
                break;
        case KBDC_WRITE_TO_AUX:
                sc->curcmd = *eax;
                break;
        case KBDC_DISABLE_AUX_PORT:
                sc->ram[0] |= KBD_DISABLE_AUX_PORT;
                ps2mouse_toggle(sc->ps2mouse_sc, 0);
                sc->status &= ~(KBDS_AUX_BUFFER_FULL | KBDS_KBD_BUFFER_FULL);
                sc->outport &= ~KBDS_AUX_BUFFER_FULL;
                break;
        case KBDC_ENABLE_AUX_PORT:
                sc->ram[0] &= ~KBD_DISABLE_AUX_PORT;
                ps2mouse_toggle(sc->ps2mouse_sc, 1);
                if (ps2mouse_fifocnt(sc->ps2mouse_sc) > 0)
                        sc->status |= KBDS_AUX_BUFFER_FULL | KBDS_KBD_BUFFER_FULL;
                break;
        case KBDC_RESET:                /* Pulse "reset" line */
                error = vm_suspend(ctx, VM_SUSPEND_RESET);
                assert(error == 0 || errno == EALREADY);
                break;
        default:
                if (*eax >= 0x21 && *eax <= 0x3f) {
                        /* read "byte N" from RAM */
                        int     byten;

                        byten = (*eax - 0x20) & 0x1f;
                        sc->ctrlbyte = CTRL_CMD_FLAG | sc->ram[byten];
                }
                break;
        }

        pthread_mutex_unlock(&sc->mtx);

        if (sc->ctrlbyte != 0) {
                sc->status |= KBDS_KBD_BUFFER_FULL;
                sc->status &= ~KBDS_AUX_BUFFER_FULL;
                atkbdc_assert_kbd_intr(sc);
        } else if (ps2mouse_fifocnt(sc->ps2mouse_sc) > 0 &&
                   (sc->ram[0] & KBD_DISABLE_AUX_PORT) == 0) {
                sc->status |= KBDS_AUX_BUFFER_FULL | KBDS_KBD_BUFFER_FULL;
                atkbdc_assert_aux_intr(sc);
        } else if (sc->kbd.bcnt > 0 && (sc->ram[0] & KBD_DISABLE_KBD_PORT) == 0) {
                sc->status |= KBDS_KBD_BUFFER_FULL;
                atkbdc_assert_kbd_intr(sc);
        }

        return (retval);
}

void
atkbdc_event(struct atkbdc_softc *sc, int iskbd)
{
        pthread_mutex_lock(&sc->mtx);

        if (iskbd)
                atkbdc_kbd_poll(sc);
        else
                atkbdc_aux_poll(sc);
        pthread_mutex_unlock(&sc->mtx);
}

void
atkbdc_init(struct vmctx *ctx)
{
        struct inout_port iop;
        struct atkbdc_softc *sc;
        int error;

        sc = calloc(1, sizeof(struct atkbdc_softc));
        sc->ctx = ctx;

        pthread_mutex_init(&sc->mtx, NULL);

        bzero(&iop, sizeof(struct inout_port));
        iop.name = "atkdbc";
        iop.port = KBD_STS_CTL_PORT;
        iop.size = 1;
        iop.flags = IOPORT_F_INOUT;
        iop.handler = atkbdc_sts_ctl_handler;
        iop.arg = sc;

        error = register_inout(&iop);
        assert(error == 0);

        bzero(&iop, sizeof(struct inout_port));
        iop.name = "atkdbc";
        iop.port = KBD_DATA_PORT;
        iop.size = 1;
        iop.flags = IOPORT_F_INOUT;
        iop.handler = atkbdc_data_handler;
        iop.arg = sc;

        error = register_inout(&iop);
        assert(error == 0);

        pci_irq_reserve(KBD_DEV_IRQ);
        sc->kbd.irq = KBD_DEV_IRQ;

        pci_irq_reserve(AUX_DEV_IRQ);
        sc->aux.irq = AUX_DEV_IRQ;

        sc->ps2kbd_sc = ps2kbd_init(sc);
        sc->ps2mouse_sc = ps2mouse_init(sc);

#ifdef BHYVE_SNAPSHOT
        assert(atkbdc_sc == NULL);
        atkbdc_sc = sc;
#endif
}

#ifdef BHYVE_SNAPSHOT
int
atkbdc_snapshot(struct vm_snapshot_meta *meta)
{
        int ret;

        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->status, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->outport, meta, ret, done);
        SNAPSHOT_BUF_OR_LEAVE(atkbdc_sc->ram,
                              sizeof(atkbdc_sc->ram), meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->curcmd, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->ctrlbyte, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->kbd, meta, ret, done);

        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->kbd.irq_active, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->kbd.irq, meta, ret, done);
        SNAPSHOT_BUF_OR_LEAVE(atkbdc_sc->kbd.buffer,
                              sizeof(atkbdc_sc->kbd.buffer), meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->kbd.brd, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->kbd.bwr, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->kbd.bcnt, meta, ret, done);

        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->aux.irq_active, meta, ret, done);
        SNAPSHOT_VAR_OR_LEAVE(atkbdc_sc->aux.irq, meta, ret, done);

        ret = ps2kbd_snapshot(atkbdc_sc->ps2kbd_sc, meta);
        if (ret != 0)
                goto done;

        ret = ps2mouse_snapshot(atkbdc_sc->ps2mouse_sc, meta);

done:
        return (ret);
}
#endif

static void
atkbdc_dsdt(void)
{

        dsdt_line("");
        dsdt_line("Device (KBD)");
        dsdt_line("{");
        dsdt_line("  Name (_HID, EisaId (\"PNP0303\"))");
        dsdt_line("  Name (_CRS, ResourceTemplate ()");
        dsdt_line("  {");
        dsdt_indent(2);
        dsdt_fixed_ioport(KBD_DATA_PORT, 1);
        dsdt_fixed_ioport(KBD_STS_CTL_PORT, 1);
        dsdt_fixed_irq(1);
        dsdt_unindent(2);
        dsdt_line("  })");
        dsdt_line("}");

        dsdt_line("");
        dsdt_line("Device (MOU)");
        dsdt_line("{");
        dsdt_line("  Name (_HID, EisaId (\"PNP0F13\"))");
        dsdt_line("  Name (_CRS, ResourceTemplate ()");
        dsdt_line("  {");
        dsdt_indent(2);
        dsdt_fixed_ioport(KBD_DATA_PORT, 1);
        dsdt_fixed_ioport(KBD_STS_CTL_PORT, 1);
        dsdt_fixed_irq(12);
        dsdt_unindent(2);
        dsdt_line("  })");
        dsdt_line("}");
}
LPC_DSDT(atkbdc_dsdt);