/*      $NetBSD: pdc.c,v 1.7 2025/09/07 21:45:13 thorpej Exp $  */

/*      $OpenBSD: pdc.c,v 1.14 2001/04/29 21:05:43 mickey Exp $ */

/*
 * Copyright (c) 1998-2003 Michael Shalayeff
 * 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 HIS RELATIVES 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 MIND, 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pdc.c,v 1.7 2025/09/07 21:45:13 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/callout.h>
#include <sys/conf.h>
#include <sys/kauth.h>

#include <dev/cons.h>
#include <dev/clock_subr.h>

#include <machine/pdc.h>
#include <machine/iomod.h>
#include <machine/autoconf.h>

#include <hppa/hppa/machdep.h>
#include <hppa/dev/cpudevs.h>

typedef
struct pdc_softc {
        device_t sc_dv;
        struct tty *sc_tty;
        struct callout sc_to;
        struct todr_chip_handle sc_todr;
} pdcsoftc_t;

pdcio_t pdc;

enum pdc_type pdc_type;

static struct pdc_result pdcret1 PDC_ALIGNMENT;
static struct pdc_result pdcret2 PDC_ALIGNMENT;
static char pdc_consbuf[IODC_MINIOSIZ] PDC_ALIGNMENT;

iodcio_t pdc_cniodc, pdc_kbdiodc;
pz_device_t *pz_kbd, *pz_cons;

int pdcmatch(device_t, cfdata_t, void *);
void pdcattach(device_t, device_t, void *);

CFATTACH_DECL_NEW(pdc, sizeof(pdcsoftc_t),
    pdcmatch, pdcattach, NULL, NULL);

extern struct cfdriver pdc_cd;

static int pdc_attached;

dev_type_open(pdcopen);
dev_type_close(pdcclose);
dev_type_read(pdcread);
dev_type_write(pdcwrite);
dev_type_ioctl(pdcioctl);
dev_type_stop(pdcstop);
dev_type_tty(pdctty);
dev_type_poll(pdcpoll);

const struct cdevsw pdc_cdevsw = {
        .d_open = pdcopen,
        .d_close = pdcclose,
        .d_read = pdcread,
        .d_write = pdcwrite,
        .d_ioctl = pdcioctl,
        .d_stop = pdcstop,
        .d_tty = pdctty,
        .d_poll = pdcpoll,
        .d_mmap = nommap,
        .d_kqfilter = ttykqfilter,
        .d_discard = nodiscard,
        .d_flag = D_TTY
};

void pdcstart(struct tty *);
void pdctimeout(void *);
int pdcparam(struct tty *, struct termios *);
int pdccnlookc(dev_t, int *);

static struct cnm_state pdc_cnm_state;

static int pdcgettod(todr_chip_handle_t, struct timeval *);
static int pdcsettod(todr_chip_handle_t, struct timeval *);

void
pdc_init(void)
{
        static int kbd_iodc[IODC_MAXSIZE/sizeof(int)];
        static int cn_iodc[IODC_MAXSIZE/sizeof(int)];
        int err;
        int pagezero_cookie;

        pagezero_cookie = hppa_pagezero_map();

        pz_kbd = &PAGE0->mem_kbd;
        pz_cons = &PAGE0->mem_cons;

        pdc = (pdcio_t)PAGE0->mem_pdc;

        /*
         * XXX should we reset the console/kbd here?
         * well, /boot did that for us anyway
         */
        if ((err = pdc_call((iodcio_t)pdc, 0, PDC_IODC, PDC_IODC_READ,
              &pdcret1, pz_cons->pz_hpa, IODC_IO, cn_iodc, IODC_MAXSIZE)) < 0 ||
            (err = pdc_call((iodcio_t)pdc, 0, PDC_IODC, PDC_IODC_READ,
              &pdcret1, pz_kbd->pz_hpa, IODC_IO, kbd_iodc, IODC_MAXSIZE)) < 0) {
#ifdef DEBUG
                printf("pdc_init: failed reading IODC (%d)\n", err);
#endif
        }

        hppa_pagezero_unmap(pagezero_cookie);

        pdc_cniodc = (iodcio_t)cn_iodc;
        pdc_kbdiodc = (iodcio_t)kbd_iodc;

        /* XXX make pdc current console */
        cn_tab = &constab[0];
}

void
pdc_settype(int modelno)
{
        switch (modelno) {
                /* 720, 750, 730, 735, 755 */
        case HPPA_BOARD_HP720:
        case HPPA_BOARD_HP750_66:
        case HPPA_BOARD_HP730_66:
        case HPPA_BOARD_HP735_99:
        case HPPA_BOARD_HP755_99:
        case HPPA_BOARD_HP755_125:
        case HPPA_BOARD_HP735_130:

                /* 710, 705, 7[12]5 */
        case HPPA_BOARD_HP710:
        case HPPA_BOARD_HP705:
        case HPPA_BOARD_HP715_50:
        case HPPA_BOARD_HP715_33:
        case HPPA_BOARD_HP715S_50:
        case HPPA_BOARD_HP715S_33:
        case HPPA_BOARD_HP715T_50:
        case HPPA_BOARD_HP715T_33:
        case HPPA_BOARD_HP715_75:
        case HPPA_BOARD_HP715_99:
        case HPPA_BOARD_HP725_50:
        case HPPA_BOARD_HP725_75:
        case HPPA_BOARD_HP725_99:

                /* 745, 742, 747 */
        case HPPA_BOARD_HP745I_50:
        case HPPA_BOARD_HP742I_50:
        case HPPA_BOARD_HP747I_100:

                /* 712/{60,80,100,120}, 715/{64,80,100,...}, etc */
        case HPPA_BOARD_HP712_60:
        case HPPA_BOARD_HP712_80:
        case HPPA_BOARD_HP712_100:
        case HPPA_BOARD_HP743I_64:
        case HPPA_BOARD_HP743I_100:
        case HPPA_BOARD_HP712_120:
        case HPPA_BOARD_HP715_80:
        case HPPA_BOARD_HP715_64:
        case HPPA_BOARD_HP715_100:
        case HPPA_BOARD_HP715_100XC:
        case HPPA_BOARD_HP725_100:
        case HPPA_BOARD_HP725_120:
        case HPPA_BOARD_HP715_100L:
        case HPPA_BOARD_HP715_120L:
        case HPPA_BOARD_HP725_80L:
        case HPPA_BOARD_HP725_100L:
        case HPPA_BOARD_HP725_120L:
        case HPPA_BOARD_HP743_50:
        case HPPA_BOARD_HP743_100:
        case HPPA_BOARD_HP715_80M:
        case HPPA_BOARD_HP811:
        case HPPA_BOARD_HP801:
        case HPPA_BOARD_HP743T:
                pdc_type = PDC_TYPE_SNAKE;
                break;

        default:
                pdc_type = PDC_TYPE_UNKNOWN;
        }
}

enum pdc_type
pdc_gettype(void)
{

        return pdc_type;
}

int
pdcmatch(device_t parent, cfdata_t cf, void *aux)
{
        struct confargs *ca = aux;

        /* there could be only one */
        if (pdc_attached || strcmp(ca->ca_name, "pdc"))
                return 0;

        return 1;
}

void
pdcattach(device_t parent, device_t self, void *aux)
{
        struct pdc_softc *sc = device_private(self);

        sc->sc_dv = self;
        pdc_attached = 1;

        KASSERT(pdc != NULL);

        cn_init_magic(&pdc_cnm_state);
        cn_set_magic("+++++");

        /* attach the TOD clock */
        sc->sc_todr.todr_settime = pdcsettod;
        sc->sc_todr.todr_gettime = pdcgettod;
        sc->sc_todr.todr_dev = self;
        todr_attach(&sc->sc_todr);

        aprint_normal("\n");

        callout_init(&sc->sc_to, 0);
}

int
pdcopen(dev_t dev, int flag, int mode, struct lwp *l)
{
        struct pdc_softc *sc;
        struct tty *tp;
        int s;
        int error = 0, setuptimeout;

        sc = device_lookup_private(&pdc_cd, minor(dev));
        if (sc == NULL)
                return ENXIO;

        s = spltty();

        if (sc->sc_tty) {
                tp = sc->sc_tty;
        } else {
                tp = tty_alloc();
                sc->sc_tty = tp;
                tty_attach(tp);
        }

        tp->t_oproc = pdcstart;
        tp->t_param = pdcparam;
        tp->t_dev = dev;

        if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp)) {
                splx(s);
                return (EBUSY);
        }

        if ((tp->t_state & TS_ISOPEN) == 0) {
                tp->t_state |= TS_CARR_ON;
                ttychars(tp);
                tp->t_iflag = TTYDEF_IFLAG;
                tp->t_oflag = TTYDEF_OFLAG;
                tp->t_cflag = TTYDEF_CFLAG|CLOCAL;
                tp->t_lflag = TTYDEF_LFLAG;
                tp->t_ispeed = tp->t_ospeed = 9600;
                ttsetwater(tp);

                setuptimeout = 1;
        } else
                setuptimeout = 0;
        tp->t_state |= TS_CARR_ON;

        splx(s);

        error = (*tp->t_linesw->l_open)(dev, tp);
        if (error == 0 && setuptimeout)
                pdctimeout(sc);

        return error;
}

int
pdcclose(dev_t dev, int flag, int mode, struct lwp *l)
{
        struct tty *tp;
        struct pdc_softc *sc;

        sc = device_lookup_private(&pdc_cd, minor(dev));
        if (sc == NULL)
                return ENXIO;

        tp = sc->sc_tty;
        callout_stop(&sc->sc_to);
        (*tp->t_linesw->l_close)(tp, flag);
        ttyclose(tp);
        return 0;
}

int
pdcread(dev_t dev, struct uio *uio, int flag)
{
        struct tty *tp;
        struct pdc_softc *sc;

        sc = device_lookup_private(&pdc_cd, minor(dev));
        if (sc == NULL)
                return ENXIO;

        tp = sc->sc_tty;
        return ((*tp->t_linesw->l_read)(tp, uio, flag));
}

int
pdcwrite(dev_t dev, struct uio *uio, int flag)
{
        struct tty *tp;
        struct pdc_softc *sc;

        sc = device_lookup_private(&pdc_cd, minor(dev));
        if (sc == NULL)
                return ENXIO;

        tp = sc->sc_tty;
        return ((*tp->t_linesw->l_write)(tp, uio, flag));
}

int
pdcpoll(dev_t dev, int events, struct lwp *l)
{
        struct pdc_softc *sc = device_lookup_private(&pdc_cd,minor(dev));
        struct tty *tp = sc->sc_tty;

        return ((*tp->t_linesw->l_poll)(tp, events, l));
}

int
pdcioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
{
        int error;
        struct tty *tp;
        struct pdc_softc *sc;

        sc = device_lookup_private(&pdc_cd, minor(dev));
        if (sc == NULL)
                return ENXIO;

        tp = sc->sc_tty;
        error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l);
        if (error >= 0)
                return error;
        error = ttioctl(tp, cmd, data, flag, l);
        if (error >= 0)
                return error;

        return ENOTTY;
}

int
pdcparam(struct tty *tp, struct termios *t)
{

        return 0;
}

void
pdcstart(struct tty *tp)
{
        int s;

        s = spltty();
        if (tp->t_state & (TS_TTSTOP | TS_BUSY)) {
                splx(s);
                return;
        }
        ttypull(tp);
        tp->t_state |= TS_BUSY;
        while (tp->t_outq.c_cc != 0)
                pdccnputc(tp->t_dev, getc(&tp->t_outq));
        tp->t_state &= ~TS_BUSY;
        splx(s);
}

void
pdcstop(struct tty *tp, int flag)
{
        int s;

        s = spltty();
        if (tp->t_state & TS_BUSY)
                if ((tp->t_state & TS_TTSTOP) == 0)
                        tp->t_state |= TS_FLUSH;
        splx(s);
}

void
pdctimeout(void *v)
{
        struct pdc_softc *sc = v;
        struct tty *tp = sc->sc_tty;
        int c;

        while (pdccnlookc(tp->t_dev, &c)) {
                cn_check_magic(tp->t_dev, c, pdc_cnm_state);
                if (tp->t_state & TS_ISOPEN)
                        (*tp->t_linesw->l_rint)(c, tp);
        }
        callout_reset(&sc->sc_to, 1, pdctimeout, sc);
}

struct tty *
pdctty(dev_t dev)
{
        struct pdc_softc *sc;

        sc = device_lookup_private(&pdc_cd, minor(dev));
        if (sc == NULL)
                return NULL;

        return sc->sc_tty;
}

void
pdccnprobe(struct consdev *cn)
{

        cn->cn_dev = makedev(22,0);
        cn->cn_pri = CN_NORMAL;
}

void
pdccninit(struct consdev *cn)
{
#ifdef DEBUG
        printf("pdc0: console init\n");
#endif
}

int
pdccnlookc(dev_t dev, int *cp)
{
        int s, err __debugused, l, pagezero_cookie;

        s = splhigh();
        pagezero_cookie = hppa_pagezero_map();
        err = pdc_call(pdc_kbdiodc, 0, pz_kbd->pz_hpa, IODC_IO_CONSIN,
            pz_kbd->pz_spa, pz_kbd->pz_layers, &pdcret1, 0, pdc_consbuf, 1, 0);
        l = pdcret1.result[0];
        *cp = pdc_consbuf[0];
        hppa_pagezero_unmap(pagezero_cookie);
        splx(s);

#ifdef DEBUG
        if (err < 0)
                printf("pdccnlookc: input error: %d\n", err);
#endif
        return l;
}

int
pdccngetc(dev_t dev)
{
        int c;

        if (!pdc)
                return 0;
        while (!pdccnlookc(dev, &c))
                ;
        return (c);
}

void
pdccnputc(dev_t dev, int c)
{
        int s, err, pagezero_cookie;

        s = splhigh();
        pagezero_cookie = hppa_pagezero_map();
        *pdc_consbuf = c;
        err = pdc_call(pdc_cniodc, 0, pz_cons->pz_hpa, IODC_IO_CONSOUT,
            pz_cons->pz_spa, pz_cons->pz_layers, &pdcret1, 0, pdc_consbuf, 1, 0);
        hppa_pagezero_unmap(pagezero_cookie);
        splx(s);

        if (err < 0) {
#if defined(DDB) || defined(KGDB)
                Debugger();
#endif /* DDB || KGDB */
                delay(250000);
#if 0
                /*
                 * It's not a good idea to use the output to print
                 * an output error.
                 */
                printf("pdccnputc: output error: %d\n", err);
#endif
        }
}

void
pdccnpollc(dev_t dev, int on)
{
}

static int
pdcgettod(todr_chip_handle_t tch, struct timeval *tvp)
{
        struct pdc_tod *tod = (struct pdc_tod *)&pdcret1;
        int error;

        error = pdc_call((iodcio_t)pdc, 1, PDC_TOD, PDC_TOD_READ,
            &pdcret1);

        if (error == 0) {
                tvp->tv_sec = tod->sec;
                tvp->tv_usec = tod->usec;
        }
        return error;
}

static int
pdcsettod(todr_chip_handle_t tch, struct timeval *tvp)
{
        int error;

        error = pdc_call((iodcio_t)pdc, 1, PDC_TOD, PDC_TOD_WRITE,
            tvp->tv_sec, tvp->tv_usec);

        return error;
}


int
pdcproc_chassis_display(unsigned long disp)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_CHASSIS, PDC_CHASSIS_DISP, disp);

        return err;
}

int
pdcproc_chassis_info(struct pdc_chassis_info *pci, struct pdc_chassis_lcd *pcl)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_CHASSIS, PDC_CHASSIS_INFO,
            &pdcret1, &pdcret2 , sizeof(*pcl));
        if (err < 0)
                return err;

        memcpy(pci, &pdcret1, sizeof(*pci));
        memcpy(pcl, &pdcret2, sizeof(*pcl));

        return err;
}

int
pdcproc_pim(int type, struct pdc_pim *pp, void **buf, size_t *sz)
{
        static char data[896] __attribute__((__aligned__(8)));
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_PIM, type, &pdcret1, data,
            sizeof(data));
        if (err < 0)
                return err;

        memcpy(pp, &pdcret1, sizeof(*pp));
        *buf = data;
        *sz = sizeof(data);

        return err;
}

int
pdcproc_model_info(struct pdc_model *pm)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_MODEL, PDC_MODEL_INFO, &pdcret1);
        if (err < 0)
                return err;

        memcpy(pm, &pdcret1, sizeof(*pm));

        return err;
}

int
pdcproc_model_cpuid(struct pdc_cpuid *pc)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_MODEL, PDC_MODEL_CPUID, &pdcret1);
        if (err < 0)
                return err;

        memcpy(pc, &pdcret1, sizeof(*pc));

        return err;
}

int
pdcproc_cache(struct pdc_cache *pc)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_CACHE, PDC_CACHE_DFLT, &pdcret1);

        if (err < 0)
                return err;

        memcpy(pc, &pdcret1, sizeof(*pc));

        return err;
}


int
pdcproc_cache_spidbits(struct pdc_spidb *pcs)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_CACHE, PDC_CACHE_GETSPIDB,
            &pdcret1);

        if (err < 0)
                return err;

        memcpy(pcs, &pdcret1, sizeof(*pcs));

        return err;
}

int
pdcproc_hpa_processor(hppa_hpa_t *hpa)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_HPA, PDC_HPA_DFLT, &pdcret1);
        if (err < 0)
                return err;

        *hpa = pdcret1.result[0];

        return err;
}

int
pdcproc_coproc(struct pdc_coproc *pc)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_COPROC, PDC_COPROC_DFLT, &pdcret1);
        if (err < 0)
                return err;

        memcpy(pc, &pdcret1, sizeof(*pc));

        return err;
}

int
pdcproc_iodc_read(hppa_hpa_t hpa, int command, int *actcnt,
    struct pdc_iodc_read *buf1, size_t sz1, struct iodc_data *buf2,
    size_t sz2)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_IODC, PDC_IODC_READ,
            &pdcret1, hpa, command, &pdcret2, sizeof(pdcret2));

        if (err < 0)
                return err;

        if (actcnt != NULL) {
                struct pdc_iodc_read *pir = (struct pdc_iodc_read *)&pdcret1;

                *actcnt = pir->size;
        }

        memcpy(buf1, &pdcret1, sz1);
        memcpy(buf2, &pdcret2, sz2);

        return err;
}

int
pdcproc_iodc_ninit(struct pdc_iodc_minit *pimi, hppa_hpa_t hpa, int sz)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_IODC, PDC_IODC_NINIT, &pdcret1,
            hpa, sz);

        if (err < 0)
                return err;

        memcpy(pimi, &pdcret1, sizeof(*pimi));

        return err;
}

int
pdcproc_instr(unsigned int *mem)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_INSTR, PDC_INSTR_DFLT, &pdcret1);
        if (err < 0)
                return err;

        memcpy(mem, &pdcret1, sizeof(*mem));

        return err;
}

int
pdcproc_block_tlb(struct pdc_btlb *pb)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_BLOCK_TLB, PDC_BTLB_DEFAULT,
            &pdcret1);
        if (err < 0)
                return err;

        memcpy(pb, &pdcret1, sizeof(*pb));

        return err;
}

int
pdcproc_btlb_insert(pa_space_t sp, vaddr_t va, paddr_t pa, vsize_t sz,
    u_int prot, int index)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_BLOCK_TLB, PDC_BTLB_INSERT, sp,
            va, pa, sz, prot, index);

        return err;
}

int
pdcproc_btlb_purge(pa_space_t sp, vaddr_t va, paddr_t pa, vsize_t sz)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_BLOCK_TLB, PDC_BTLB_PURGE, sp, va,
            pa, sz);

        return err;
}

int
pdcproc_btlb_purgeall(void)
{
        int err;

        err =  pdc_call((iodcio_t)pdc, 0, PDC_BLOCK_TLB, PDC_BTLB_PURGE_ALL);

        return err;
}

int pdcproc_tlb_info(struct pdc_hwtlb *ph)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_TLB, PDC_TLB_INFO, &pdcret1);
        if (err < 0)
                return err;

        memcpy(ph, &pdcret1, sizeof(*ph));

        return err;
}

int
pdcproc_tlb_config(struct pdc_hwtlb *ph, unsigned long hpt,
    unsigned long hptsize, unsigned long type)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_TLB, PDC_TLB_CONFIG, ph, hpt,
            hptsize, type);

        return err;
}

int
pdcproc_system_map_find_mod(struct pdc_system_map_find_mod *psm,
    struct device_path *dev, int mod)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_SYSTEM_MAP,
            PDC_SYSTEM_MAP_FIND_MOD, &pdcret1, &pdcret2, mod);
        if (err < 0)
                return err;

        memcpy(psm, &pdcret1, sizeof(*psm));
        memcpy(dev, &pdcret2, sizeof(*dev));

        return err;
}

int
pdcproc_system_map_find_addr(struct pdc_system_map_find_addr *psm, int mod,
    int addr)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_SYSTEM_MAP,
            PDC_SYSTEM_MAP_FIND_ADDR, &pdcret1, mod, addr);
        if (err < 0)
                return err;

        memcpy(psm, &pdcret1, sizeof(*psm));

        return err;

}

int
pdcproc_system_map_trans_path(struct pdc_memmap *pmm, struct device_path *dev)
{
        int err;

        memcpy(&pdcret2, dev, sizeof(*dev));

        err = pdc_call((iodcio_t)pdc, 0, PDC_SYSTEM_MAP,
            PDC_SYSTEM_MAP_TRANS_PATH, &pdcret1, &pdcret2);
        if (err < 0)
                return err;

        memcpy(pmm, &pdcret1, sizeof(*pmm));

        return err;
}

int
pdcproc_soft_power_info(struct pdc_power_info *pspi)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_SOFT_POWER, PDC_SOFT_POWER_INFO,
            &pdcret1, 0);
        if (err < 0)
                return err;

        memcpy(pspi, &pdcret1, sizeof(*pspi));

        return err;
}

int
pdcproc_soft_power_enable(int action)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_SOFT_POWER, PDC_SOFT_POWER_ENABLE,
            &pdcret1, action);

        return err;
}

int
pdcproc_memmap(struct pdc_memmap *pmm, struct device_path *dev)
{
        int err;

        memcpy(&pdcret2, dev, sizeof(*dev));

        err = pdc_call((iodcio_t)pdc, 0, PDC_MEMMAP, PDC_MEMMAP_HPA, &pdcret1,
            &pdcret2);
        if (err < 0)
                return err;

        memcpy(pmm, &pdcret1, sizeof(*pmm));

        return err;
}

int
pdcproc_ioclrerrors(void)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_IO, PDC_IO_READ_AND_CLEAR_ERRORS);

        return err;
}

int
pdcproc_ioreset(void)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_IO, PDC_IO_RESET_DEVICES);

        return err;
}

int
pdcproc_doreset(void)
{
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_BROADCAST_RESET, PDC_DO_RESET);

        return err;
}

int
pdcproc_lan_station_id(char *addr, size_t sz, hppa_hpa_t hpa)
{
        struct pdc_lan_station_id *mac = (struct pdc_lan_station_id *)&pdcret1;
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_LAN_STATION_ID,
            PDC_LAN_STATION_ID_READ, &pdcret1, hpa);
        if (err < 0)
                return err;

        memcpy(addr, mac->addr, sz);

        return 0;
}

int
pdcproc_pci_inttblsz(int *nentries)
{
        struct pdc_pat_io_num *ppio = (struct pdc_pat_io_num *)&pdcret1;
        int err;

        err = pdc_call((iodcio_t)pdc, 0, PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL_SZ,
            &pdcret1);

        *nentries = ppio->num;

        return err;
}

/* Maximum number of supported interrupt routing entries. */
#define MAX_INT_TBL_SZ  16

int
pdcproc_pci_gettable(int nentries, size_t size, void *table)
{
        int err;
        static struct pdc_pat_pci_rt int_tbl[MAX_INT_TBL_SZ] PDC_ALIGNMENT;

        if (nentries > MAX_INT_TBL_SZ)
                panic("interrupt routing table too big (%d entries)", nentries);

        pdcret1.result[0] = nentries;

        err = pdc_call((iodcio_t)pdc, 0, PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL,
            &pdcret1, 0, &int_tbl);
        if (err < 0)
                return err;

        memcpy(table, int_tbl, size);

        return err;
}