596 lines
14 KiB
C
596 lines
14 KiB
C
/* $NetBSD: btvmeii.c,v 1.3 2001/07/07 16:37:38 thorpej Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1999
|
|
* Matthias Drochner. 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 AND CONTRIBUTORS ``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.
|
|
*/
|
|
|
|
/*
|
|
* Driver for the Bit3/SBS PCI-VME adapter Model 2706.
|
|
* Uses the common Tundra Universe code.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcidevs.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/extent.h>
|
|
|
|
#include <dev/pci/ppbreg.h>
|
|
|
|
#include <dev/vme/vmereg.h>
|
|
#include <dev/vme/vmevar.h>
|
|
|
|
#include <dev/pci/universe_pci_var.h>
|
|
|
|
static int b3_2706_match __P((struct device *, struct cfdata *, void *));
|
|
static void b3_2706_attach __P((struct device *, struct device *, void *));
|
|
|
|
/* exported via tag structs */
|
|
int b3_2706_map_vme __P((void *, vme_addr_t, vme_size_t,
|
|
vme_am_t, vme_datasize_t, vme_swap_t,
|
|
bus_space_tag_t *, bus_space_handle_t *, vme_mapresc_t*));
|
|
void b3_2706_unmap_vme __P((void *, vme_mapresc_t));
|
|
|
|
int b3_2706_vme_probe __P((void *, vme_addr_t, vme_size_t, vme_am_t,
|
|
vme_datasize_t,
|
|
int (*)(void *, bus_space_tag_t, bus_space_handle_t),
|
|
void *));
|
|
|
|
int b3_2706_map_vmeint __P((void *, int, int, vme_intr_handle_t *));
|
|
void *b3_2706_establish_vmeint __P((void *, vme_intr_handle_t, int,
|
|
int (*)(void *), void *));
|
|
void b3_2706_disestablish_vmeint __P((void *, void *));
|
|
void b3_2706_vmeint __P((void *, int, int));
|
|
|
|
int b3_2706_dmamap_create __P((void *, vme_size_t,
|
|
vme_am_t, vme_datasize_t, vme_swap_t,
|
|
int, vme_size_t, vme_addr_t,
|
|
int, bus_dmamap_t *));
|
|
void b3_2706_dmamap_destroy __P((void *, bus_dmamap_t));
|
|
|
|
int b3_2706_dmamem_alloc __P((void *, vme_size_t,
|
|
vme_am_t, vme_datasize_t, vme_swap_t,
|
|
bus_dma_segment_t *, int, int *, int));
|
|
void b3_2706_dmamem_free __P((void *, bus_dma_segment_t *, int));
|
|
|
|
struct b3_2706_vmemaprescs {
|
|
int wnd;
|
|
unsigned long pcibase, maplen;
|
|
bus_space_handle_t handle;
|
|
u_int32_t len;
|
|
};
|
|
|
|
struct b3_2706_vmeintrhand {
|
|
TAILQ_ENTRY(b3_2706_vmeintrhand) ih_next;
|
|
int (*ih_fun) __P((void*));
|
|
void *ih_arg;
|
|
int ih_level;
|
|
int ih_vector;
|
|
int ih_prior;
|
|
u_long ih_count;
|
|
};
|
|
|
|
struct b3_2706_softc {
|
|
struct device sc_dev;
|
|
struct univ_pci_data univdata;
|
|
bus_space_tag_t swapt, vmet;
|
|
bus_space_handle_t swaph;
|
|
bus_addr_t vmepbase;
|
|
|
|
int windowused[8];
|
|
struct b3_2706_vmemaprescs vmemaprescs[8];
|
|
struct extent *vmeext;
|
|
char vmemap[EXTENT_FIXED_STORAGE_SIZE(8)];
|
|
|
|
struct vme_chipset_tag sc_vct;
|
|
|
|
/* list of VME interrupt handlers */
|
|
TAILQ_HEAD(, b3_2706_vmeintrhand) intrhdls;
|
|
int strayintrs;
|
|
};
|
|
|
|
struct cfattach btvmeii_ca = {
|
|
sizeof(struct b3_2706_softc), b3_2706_match, b3_2706_attach,
|
|
#if 0
|
|
b3_2706_detach
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* The adapter consists of a DEC PCI-PCI-bridge with two
|
|
* PCI devices behind it: A Tundra Universe as device 4 and
|
|
* some FPGA with glue logics as device 8.
|
|
* As long as the autoconf code doesn't provide more support
|
|
* for dependant devices, we have to duplicate a part of the
|
|
* "ppb" functions here.
|
|
*/
|
|
|
|
static int
|
|
b3_2706_match(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct pci_attach_args *pa = aux;
|
|
pci_chipset_tag_t pc = pa->pa_pc;
|
|
int secbus;
|
|
pcitag_t tag;
|
|
pcireg_t id;
|
|
|
|
if ((PCI_VENDOR(pa->pa_id) != PCI_VENDOR_DEC)
|
|
|| (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_DEC_21152))
|
|
return (0);
|
|
|
|
secbus = PPB_BUSINFO_SECONDARY(pci_conf_read(pc, pa->pa_tag,
|
|
PPB_REG_BUSINFO));
|
|
if (secbus == 0) {
|
|
printf("b3_2706_match: ppb not configured\n");
|
|
return (0);
|
|
}
|
|
|
|
tag = pci_make_tag(pc, secbus, 4, 0);
|
|
id = pci_conf_read(pc, tag, PCI_ID_REG);
|
|
|
|
if ((PCI_VENDOR(id) != PCI_VENDOR_NEWBRIDGE)
|
|
|| (PCI_PRODUCT(id) != PCI_PRODUCT_NEWBRIDGE_CA91CX42)) {
|
|
#ifdef DEBUG
|
|
printf("b3_2706_match: no tundra\n");
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
tag = pci_make_tag(pc, secbus, 8, 0);
|
|
id = pci_conf_read(pc, tag, PCI_ID_REG);
|
|
|
|
if ((PCI_VENDOR(id) != PCI_VENDOR_BIT3)
|
|
|| (PCI_PRODUCT(id) != PCI_PRODUCT_BIT3_PCIVME2706)) {
|
|
#ifdef DEBUG
|
|
printf("b3_2706_match: no bit3 chip\n");
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
return (5); /* beat "ppb" */
|
|
}
|
|
|
|
static void
|
|
b3_2706_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct b3_2706_softc *sc = (struct b3_2706_softc *)self;
|
|
struct pci_attach_args *pa = aux;
|
|
pci_chipset_tag_t pc = pa->pa_pc;
|
|
struct pci_attach_args aa;
|
|
int secbus;
|
|
pcireg_t intr;
|
|
pcitag_t tag;
|
|
bus_addr_t swappbase;
|
|
int i;
|
|
|
|
struct vmebus_attach_args vaa;
|
|
|
|
printf("\n");
|
|
|
|
secbus = PPB_BUSINFO_SECONDARY(pci_conf_read(pc, pa->pa_tag,
|
|
PPB_REG_BUSINFO));
|
|
|
|
memcpy(&aa, pa, sizeof(struct pci_attach_args));
|
|
aa.pa_device = 4;
|
|
aa.pa_function = 0;
|
|
aa.pa_tag = pci_make_tag(pc, secbus, 4, 0);
|
|
aa.pa_intrswiz += 4;
|
|
intr = pci_conf_read(pc, aa.pa_tag, PCI_INTERRUPT_REG);
|
|
/*
|
|
* swizzle it based on the number of
|
|
* busses we're behind and our device
|
|
* number.
|
|
*/
|
|
aa.pa_intrpin = ((1 + aa.pa_intrswiz - 1) % 4) + 1;
|
|
aa.pa_intrline = PCI_INTERRUPT_LINE(intr);
|
|
|
|
if (univ_pci_attach(&sc->univdata, &aa, self->dv_xname,
|
|
b3_2706_vmeint, sc)) {
|
|
printf("%s: error initializing universe chip\n",
|
|
self->dv_xname);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* don't waste KVM - the byteswap register is aliased in
|
|
* a 512k window, we need it only once
|
|
*/
|
|
tag = pci_make_tag(pc, secbus, 8, 0);
|
|
sc->swapt = pa->pa_memt;
|
|
if (pci_mapreg_info(pc, tag, 0x10,
|
|
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
|
|
&swappbase, 0, 0) ||
|
|
bus_space_map(sc->swapt, swappbase, 4, 0, &sc->swaph)) {
|
|
printf("%s: can't map byteswap register\n", self->dv_xname);
|
|
return;
|
|
}
|
|
/*
|
|
* Set up cycle specific byteswap mode.
|
|
* XXX Readback yields "all-ones" for me, and it doesn't seem
|
|
* to matter what I write into the register - the data don't
|
|
* get swapped. Adapter fault or documentation bug?
|
|
*/
|
|
bus_space_write_4(sc->swapt, sc->swaph, 0, 0x00000490);
|
|
|
|
/* VME space is mapped as needed */
|
|
sc->vmet = pa->pa_memt;
|
|
if (pci_mapreg_info(pc, tag, 0x14,
|
|
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
|
|
&sc->vmepbase, 0, 0)) {
|
|
printf("%s: VME range not assigned\n", self->dv_xname);
|
|
return;
|
|
}
|
|
#ifdef BIT3DEBUG
|
|
printf("%s: VME window @%lx\n", self->dv_xname, (long)sc->vmepbase);
|
|
#endif
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
sc->windowused[i] = 0;
|
|
}
|
|
sc->vmeext = extent_create("pcivme", sc->vmepbase,
|
|
sc->vmepbase + 32*1024*1024 - 1, M_DEVBUF,
|
|
sc->vmemap, sizeof(sc->vmemap),
|
|
EX_NOCOALESCE);
|
|
|
|
sc->sc_vct.cookie = self;
|
|
sc->sc_vct.vct_probe = b3_2706_vme_probe;
|
|
sc->sc_vct.vct_map = b3_2706_map_vme;
|
|
sc->sc_vct.vct_unmap = b3_2706_unmap_vme;
|
|
sc->sc_vct.vct_int_map = b3_2706_map_vmeint;
|
|
sc->sc_vct.vct_int_establish = b3_2706_establish_vmeint;
|
|
sc->sc_vct.vct_int_disestablish = b3_2706_disestablish_vmeint;
|
|
sc->sc_vct.vct_dmamap_create = b3_2706_dmamap_create;
|
|
sc->sc_vct.vct_dmamap_destroy = b3_2706_dmamap_destroy;
|
|
sc->sc_vct.vct_dmamem_alloc = b3_2706_dmamem_alloc;
|
|
sc->sc_vct.vct_dmamem_free = b3_2706_dmamem_free;
|
|
|
|
vaa.va_vct = &(sc->sc_vct);
|
|
vaa.va_bdt = pa->pa_dmat; /* XXX */
|
|
vaa.va_slaveconfig = 0; /* XXX CSR window? */
|
|
|
|
config_found(self, &vaa, 0);
|
|
}
|
|
|
|
#define sc ((struct b3_2706_softc*)vsc)
|
|
|
|
int
|
|
b3_2706_map_vme(vsc, vmeaddr, len, am, datasizes, swap, tag, handle, resc)
|
|
void *vsc;
|
|
vme_addr_t vmeaddr;
|
|
vme_size_t len;
|
|
vme_am_t am;
|
|
vme_datasize_t datasizes;
|
|
vme_swap_t swap;
|
|
bus_space_tag_t *tag;
|
|
bus_space_handle_t *handle;
|
|
vme_mapresc_t *resc;
|
|
{
|
|
int idx, i, wnd, res;
|
|
unsigned long boundary, maplen, pcibase;
|
|
vme_addr_t vmebase, vmeend;
|
|
static int windoworder[8] = {1, 2, 3, 5, 6, 7, 0, 4};
|
|
|
|
/* prefer windows with fine granularity for small mappings */
|
|
wnd = -1;
|
|
if (len <= 32*1024)
|
|
idx = 6;
|
|
else
|
|
idx = 0;
|
|
for (i = 0; i < 8; i++) {
|
|
if (!sc->windowused[windoworder[idx]]) {
|
|
wnd = windoworder[idx];
|
|
sc->windowused[wnd] = 1;
|
|
break;
|
|
}
|
|
idx = (idx + 1) % 8;
|
|
}
|
|
if (wnd == -1)
|
|
return (ENOSPC);
|
|
|
|
boundary = (wnd & 3) ? 64*1024 : 4*1024;
|
|
|
|
/* first mapped address */
|
|
vmebase = vmeaddr & ~(boundary - 1);
|
|
/* base of last mapped page */
|
|
vmeend = (vmeaddr + len - 1) & ~(boundary - 1);
|
|
/* bytes in outgoing window required */
|
|
maplen = vmeend - vmebase + boundary;
|
|
|
|
if (extent_alloc(sc->vmeext, maplen, boundary, 0, EX_FAST, &pcibase)) {
|
|
sc->windowused[wnd] = 0;
|
|
return (ENOMEM);
|
|
}
|
|
|
|
res = univ_pci_mapvme(&sc->univdata, wnd, vmebase, maplen,
|
|
am, datasizes, pcibase);
|
|
if (res) {
|
|
extent_free(sc->vmeext, pcibase, maplen, 0);
|
|
sc->windowused[wnd] = 0;
|
|
return (res);
|
|
}
|
|
|
|
res = bus_space_map(sc->vmet, pcibase + (vmeaddr - vmebase), len,
|
|
0, handle);
|
|
if (res) {
|
|
univ_pci_unmapvme(&sc->univdata, wnd);
|
|
extent_free(sc->vmeext, pcibase, maplen, 0);
|
|
sc->windowused[wnd] = 0;
|
|
return (res);
|
|
}
|
|
|
|
*tag = sc->vmet;
|
|
|
|
/*
|
|
* save all data needed for later unmapping
|
|
*/
|
|
sc->vmemaprescs[wnd].wnd = wnd;
|
|
sc->vmemaprescs[wnd].pcibase = pcibase;
|
|
sc->vmemaprescs[wnd].maplen = maplen;
|
|
sc->vmemaprescs[wnd].handle = *handle;
|
|
sc->vmemaprescs[wnd].len = len;
|
|
*resc = &sc->vmemaprescs[wnd];
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
b3_2706_unmap_vme(vsc, resc)
|
|
void *vsc;
|
|
vme_mapresc_t resc;
|
|
{
|
|
struct b3_2706_vmemaprescs *r = resc;
|
|
|
|
bus_space_unmap(sc->vmet, r->handle, r->len);
|
|
extent_free(sc->vmeext, r->pcibase, r->maplen, 0);
|
|
|
|
if (!sc->windowused[r->wnd])
|
|
panic("b3_2706_unmap_vme: bad window");
|
|
univ_pci_unmapvme(&sc->univdata, r->wnd);
|
|
sc->windowused[r->wnd] = 0;
|
|
}
|
|
|
|
int
|
|
b3_2706_vme_probe(vsc, addr, len, am, datasize, callback, cbarg)
|
|
void *vsc;
|
|
vme_addr_t addr;
|
|
vme_size_t len;
|
|
vme_am_t am;
|
|
vme_datasize_t datasize;
|
|
int (*callback) __P((void *, bus_space_tag_t, bus_space_handle_t));
|
|
void *cbarg;
|
|
{
|
|
bus_space_tag_t tag;
|
|
bus_space_handle_t handle;
|
|
vme_mapresc_t resc;
|
|
int res, i;
|
|
volatile u_int32_t dummy;
|
|
|
|
res = b3_2706_map_vme(vsc, addr, len, am, datasize, 0,
|
|
&tag, &handle, &resc);
|
|
if (res)
|
|
return (res);
|
|
|
|
if (univ_pci_vmebuserr(&sc->univdata, 1))
|
|
printf("b3_2706_vme_badaddr: TA bit not clean - reset\n");
|
|
|
|
if (callback)
|
|
res = (*callback)(cbarg, tag, handle);
|
|
else {
|
|
for (i = 0; i < len;) {
|
|
switch (datasize) {
|
|
case VME_D8:
|
|
dummy = bus_space_read_1(tag, handle, i);
|
|
i++;
|
|
break;
|
|
case VME_D16:
|
|
dummy = bus_space_read_2(tag, handle, i);
|
|
i += 2;
|
|
break;
|
|
case VME_D32:
|
|
dummy = bus_space_read_4(tag, handle, i);
|
|
i += 4;
|
|
break;
|
|
default:
|
|
panic("b3_2706_vme_probe: invalid datasize %x",
|
|
datasize);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (univ_pci_vmebuserr(&sc->univdata, 0)) {
|
|
#ifdef BIT3DEBUG
|
|
printf("b3_2706_vme_badaddr: caught TA\n");
|
|
#endif
|
|
univ_pci_vmebuserr(&sc->univdata, 1);
|
|
res = EIO;
|
|
}
|
|
|
|
b3_2706_unmap_vme(vsc, resc);
|
|
return (res);
|
|
}
|
|
|
|
int
|
|
b3_2706_map_vmeint(vsc, level, vector, handlep)
|
|
void *vsc;
|
|
int level, vector;
|
|
vme_intr_handle_t *handlep;
|
|
{
|
|
|
|
*handlep = (void *)(long)((level << 8) | vector); /* XXX */
|
|
return (0);
|
|
}
|
|
|
|
void *
|
|
b3_2706_establish_vmeint(vsc, handle, prior, func, arg)
|
|
void *vsc;
|
|
vme_intr_handle_t handle;
|
|
int prior;
|
|
int (*func) __P((void *));
|
|
void *arg;
|
|
{
|
|
struct b3_2706_vmeintrhand *ih;
|
|
long lv;
|
|
int s;
|
|
extern int cold;
|
|
|
|
/* no point in sleeping unless someone can free memory. */
|
|
ih = malloc(sizeof *ih, M_DEVBUF, cold ? M_NOWAIT : M_WAITOK);
|
|
if (ih == NULL)
|
|
panic("b3_2706_map_vmeint: can't malloc handler info");
|
|
|
|
lv = (long)handle; /* XXX */
|
|
|
|
ih->ih_fun = func;
|
|
ih->ih_arg = arg;
|
|
ih->ih_level = lv >> 8;
|
|
ih->ih_vector = lv & 0xff;
|
|
ih->ih_prior = prior;
|
|
ih->ih_count = 0;
|
|
|
|
s = splhigh();
|
|
TAILQ_INSERT_TAIL(&(sc->intrhdls), ih, ih_next);
|
|
splx(s);
|
|
|
|
return (ih);
|
|
}
|
|
|
|
void
|
|
b3_2706_disestablish_vmeint(vsc, cookie)
|
|
void *vsc;
|
|
void *cookie;
|
|
{
|
|
struct b3_2706_vmeintrhand *ih = cookie;
|
|
int s;
|
|
|
|
if (!ih) {
|
|
printf("b3_2706_unmap_vmeint: NULL arg\n");
|
|
return;
|
|
}
|
|
|
|
s = splhigh();
|
|
TAILQ_REMOVE(&(sc->intrhdls), ih, ih_next);
|
|
splx(s);
|
|
|
|
free(ih, M_DEVBUF);
|
|
}
|
|
|
|
void
|
|
b3_2706_vmeint(vsc, level, vector)
|
|
void *vsc;
|
|
int level, vector;
|
|
{
|
|
struct b3_2706_vmeintrhand *ih;
|
|
int found;
|
|
|
|
#ifdef BIT3DEBUG
|
|
printf("b3_2706_vmeint: VME IRQ %d, vec %x\n", level, vector);
|
|
#endif
|
|
found = 0;
|
|
|
|
for (ih = sc->intrhdls.tqh_first; ih;
|
|
ih = ih->ih_next.tqe_next) {
|
|
if ((ih->ih_level == level) &&
|
|
((ih->ih_vector == -1) ||
|
|
(ih->ih_vector == vector))) {
|
|
int s, res;
|
|
/*
|
|
* We should raise the interrupt level
|
|
* to ih->ih_prior here. How to do this
|
|
* machine-independantly?
|
|
* To be safe, raise to the maximum.
|
|
*/
|
|
s = splhigh();
|
|
found |= (res = (*(ih->ih_fun))(ih->ih_arg));
|
|
splx(s);
|
|
if (res)
|
|
ih->ih_count++;
|
|
if (res == 1)
|
|
break;
|
|
}
|
|
}
|
|
if (!found)
|
|
sc->strayintrs++;
|
|
}
|
|
|
|
int
|
|
b3_2706_dmamap_create(vsc, len, am, datasize, swap,
|
|
nsegs, segsz, bound,
|
|
flags, mapp)
|
|
void *vsc;
|
|
vme_size_t len;
|
|
vme_am_t am;
|
|
vme_datasize_t datasize;
|
|
vme_swap_t swap;
|
|
int nsegs;
|
|
vme_size_t segsz;
|
|
vme_addr_t bound;
|
|
int flags;
|
|
bus_dmamap_t *mapp;
|
|
{
|
|
return (EINVAL);
|
|
}
|
|
|
|
void
|
|
b3_2706_dmamap_destroy(vsc, map)
|
|
void *vsc;
|
|
bus_dmamap_t map;
|
|
{
|
|
}
|
|
|
|
int
|
|
b3_2706_dmamem_alloc(vsc, len, am, datasizes, swap, segs, nsegs, rsegs, flags)
|
|
void *vsc;
|
|
vme_size_t len;
|
|
vme_am_t am;
|
|
vme_datasize_t datasizes;
|
|
vme_swap_t swap;
|
|
bus_dma_segment_t *segs;
|
|
int nsegs;
|
|
int *rsegs;
|
|
int flags;
|
|
{
|
|
return (EINVAL);
|
|
}
|
|
|
|
void
|
|
b3_2706_dmamem_free(vsc, segs, nsegs)
|
|
void *vsc;
|
|
bus_dma_segment_t *segs;
|
|
int nsegs;
|
|
{
|
|
}
|
|
|
|
#undef sc
|