* Copyright (c) 1998-2003 Michael Shalayeff

/* $NetBSD: pdc.c,v 1.5 2025/04/02 18:10:50 skrll 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 1.5 2025/04/02 18:10:50 skrll 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;
} 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)
{
static struct todr_chip_handle todr = {
.todr_settime = pdcsettod,
.todr_gettime = pdcgettod,
};
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 */
todr_attach(&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;
}