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/*-
* Copyright (c) 2005 Ruslan Ermilov
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/pci/nfsmb.c 202931 2010-01-24 14:57:54Z gavin $");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/smbus/smbconf.h>
#include "smbus_if.h"
#define NFSMB_DEBUG(x) if (nfsmb_debug) (x)
#ifdef DEBUG
static int nfsmb_debug = 1;
#else
static int nfsmb_debug = 0;
#endif
/* NVIDIA nForce2/3/4 MCP */
#define NFSMB_VENDORID_NVIDIA 0x10de
#define NFSMB_DEVICEID_NF2_SMB 0x0064
#define NFSMB_DEVICEID_NF2_ULTRA_SMB 0x0084
#define NFSMB_DEVICEID_NF3_PRO150_SMB 0x00d4
#define NFSMB_DEVICEID_NF3_250GB_SMB 0x00e4
#define NFSMB_DEVICEID_NF4_SMB 0x0052
#define NFSMB_DEVICEID_NF4_04_SMB 0x0034
#define NFSMB_DEVICEID_NF4_51_SMB 0x0264
#define NFSMB_DEVICEID_NF4_55_SMB 0x0368
#define NFSMB_DEVICEID_NF4_61_SMB 0x03eb
#define NFSMB_DEVICEID_NF4_65_SMB 0x0446
#define NFSMB_DEVICEID_NF4_67_SMB 0x0542
#define NFSMB_DEVICEID_NF4_73_SMB 0x07d8
#define NFSMB_DEVICEID_NF4_78S_SMB 0x0752
#define NFSMB_DEVICEID_NF4_79_SMB 0x0aa2
/* PCI Configuration space registers */
#define NF2PCI_SMBASE_1 PCIR_BAR(4)
#define NF2PCI_SMBASE_2 PCIR_BAR(5)
/*
* ACPI 3.0, Chapter 12, SMBus Host Controller Interface.
*/
#define SMB_PRTCL 0x00 /* protocol */
#define SMB_STS 0x01 /* status */
#define SMB_ADDR 0x02 /* address */
#define SMB_CMD 0x03 /* command */
#define SMB_DATA 0x04 /* 32 data registers */
#define SMB_BCNT 0x24 /* number of data bytes */
#define SMB_ALRM_A 0x25 /* alarm address */
#define SMB_ALRM_D 0x26 /* 2 bytes alarm data */
#define SMB_STS_DONE 0x80
#define SMB_STS_ALRM 0x40
#define SMB_STS_RES 0x20
#define SMB_STS_STATUS 0x1f
#define SMB_STS_OK 0x00 /* OK */
#define SMB_STS_UF 0x07 /* Unknown Failure */
#define SMB_STS_DANA 0x10 /* Device Address Not Acknowledged */
#define SMB_STS_DED 0x11 /* Device Error Detected */
#define SMB_STS_DCAD 0x12 /* Device Command Access Denied */
#define SMB_STS_UE 0x13 /* Unknown Error */
#define SMB_STS_DAD 0x17 /* Device Access Denied */
#define SMB_STS_T 0x18 /* Timeout */
#define SMB_STS_HUP 0x19 /* Host Unsupported Protocol */
#define SMB_STS_B 0x1A /* Busy */
#define SMB_STS_PEC 0x1F /* PEC (CRC-8) Error */
#define SMB_PRTCL_WRITE 0x00
#define SMB_PRTCL_READ 0x01
#define SMB_PRTCL_QUICK 0x02
#define SMB_PRTCL_BYTE 0x04
#define SMB_PRTCL_BYTE_DATA 0x06
#define SMB_PRTCL_WORD_DATA 0x08
#define SMB_PRTCL_BLOCK_DATA 0x0a
#define SMB_PRTCL_PROC_CALL 0x0c
#define SMB_PRTCL_BLOCK_PROC_CALL 0x0d
#define SMB_PRTCL_PEC 0x80
struct nfsmb_softc {
int rid;
struct resource *res;
device_t smbus;
device_t subdev;
struct mtx lock;
};
#define NFSMB_LOCK(nfsmb) mtx_lock(&(nfsmb)->lock)
#define NFSMB_UNLOCK(nfsmb) mtx_unlock(&(nfsmb)->lock)
#define NFSMB_LOCK_ASSERT(nfsmb) mtx_assert(&(nfsmb)->lock, MA_OWNED)
#define NFSMB_SMBINB(nfsmb, register) \
(bus_read_1(nfsmb->res, register))
#define NFSMB_SMBOUTB(nfsmb, register, value) \
(bus_write_1(nfsmb->res, register, value))
static int nfsmb_detach(device_t dev);
static int nfsmbsub_detach(device_t dev);
static int
nfsmbsub_probe(device_t dev)
{
device_set_desc(dev, "nForce2/3/4 MCP SMBus Controller");
return (BUS_PROBE_DEFAULT);
}
static int
nfsmb_probe(device_t dev)
{
u_int16_t vid;
u_int16_t did;
vid = pci_get_vendor(dev);
did = pci_get_device(dev);
if (vid == NFSMB_VENDORID_NVIDIA) {
switch(did) {
case NFSMB_DEVICEID_NF2_SMB:
case NFSMB_DEVICEID_NF2_ULTRA_SMB:
case NFSMB_DEVICEID_NF3_PRO150_SMB:
case NFSMB_DEVICEID_NF3_250GB_SMB:
case NFSMB_DEVICEID_NF4_SMB:
case NFSMB_DEVICEID_NF4_04_SMB:
case NFSMB_DEVICEID_NF4_51_SMB:
case NFSMB_DEVICEID_NF4_55_SMB:
case NFSMB_DEVICEID_NF4_61_SMB:
case NFSMB_DEVICEID_NF4_65_SMB:
case NFSMB_DEVICEID_NF4_67_SMB:
case NFSMB_DEVICEID_NF4_73_SMB:
case NFSMB_DEVICEID_NF4_78S_SMB:
case NFSMB_DEVICEID_NF4_79_SMB:
device_set_desc(dev, "nForce2/3/4 MCP SMBus Controller");
return (BUS_PROBE_DEFAULT);
}
}
return (ENXIO);
}
static int
nfsmbsub_attach(device_t dev)
{
device_t parent;
struct nfsmb_softc *nfsmbsub_sc = device_get_softc(dev);
parent = device_get_parent(dev);
nfsmbsub_sc->rid = NF2PCI_SMBASE_2;
nfsmbsub_sc->res = bus_alloc_resource_any(parent, SYS_RES_IOPORT,
&nfsmbsub_sc->rid, RF_ACTIVE);
if (nfsmbsub_sc->res == NULL) {
/* Older incarnations of the device used non-standard BARs. */
nfsmbsub_sc->rid = 0x54;
nfsmbsub_sc->res = bus_alloc_resource_any(parent,
SYS_RES_IOPORT, &nfsmbsub_sc->rid, RF_ACTIVE);
if (nfsmbsub_sc->res == NULL) {
device_printf(dev, "could not map i/o space\n");
return (ENXIO);
}
}
mtx_init(&nfsmbsub_sc->lock, device_get_nameunit(dev), "nfsmb",
MTX_DEF);
nfsmbsub_sc->smbus = device_add_child(dev, "smbus", -1);
if (nfsmbsub_sc->smbus == NULL) {
nfsmbsub_detach(dev);
return (EINVAL);
}
bus_generic_attach(dev);
return (0);
}
static int
nfsmb_attach(device_t dev)
{
struct nfsmb_softc *nfsmb_sc = device_get_softc(dev);
/* Allocate I/O space */
nfsmb_sc->rid = NF2PCI_SMBASE_1;
nfsmb_sc->res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&nfsmb_sc->rid, RF_ACTIVE);
if (nfsmb_sc->res == NULL) {
/* Older incarnations of the device used non-standard BARs. */
nfsmb_sc->rid = 0x50;
nfsmb_sc->res = bus_alloc_resource_any(dev,
SYS_RES_IOPORT, &nfsmb_sc->rid, RF_ACTIVE);
if (nfsmb_sc->res == NULL) {
device_printf(dev, "could not map i/o space\n");
return (ENXIO);
}
}
mtx_init(&nfsmb_sc->lock, device_get_nameunit(dev), "nfsmb", MTX_DEF);
/* Allocate a new smbus device */
nfsmb_sc->smbus = device_add_child(dev, "smbus", -1);
if (!nfsmb_sc->smbus) {
nfsmb_detach(dev);
return (EINVAL);
}
nfsmb_sc->subdev = NULL;
switch (pci_get_device(dev)) {
case NFSMB_DEVICEID_NF2_SMB:
case NFSMB_DEVICEID_NF2_ULTRA_SMB:
case NFSMB_DEVICEID_NF3_PRO150_SMB:
case NFSMB_DEVICEID_NF3_250GB_SMB:
case NFSMB_DEVICEID_NF4_SMB:
case NFSMB_DEVICEID_NF4_04_SMB:
case NFSMB_DEVICEID_NF4_51_SMB:
case NFSMB_DEVICEID_NF4_55_SMB:
case NFSMB_DEVICEID_NF4_61_SMB:
case NFSMB_DEVICEID_NF4_65_SMB:
case NFSMB_DEVICEID_NF4_67_SMB:
case NFSMB_DEVICEID_NF4_73_SMB:
case NFSMB_DEVICEID_NF4_78S_SMB:
case NFSMB_DEVICEID_NF4_79_SMB:
/* Trying to add secondary device as slave */
nfsmb_sc->subdev = device_add_child(dev, "nfsmb", -1);
if (!nfsmb_sc->subdev) {
nfsmb_detach(dev);
return (EINVAL);
}
break;
default:
break;
}
bus_generic_attach(dev);
return (0);
}
static int
nfsmbsub_detach(device_t dev)
{
device_t parent;
struct nfsmb_softc *nfsmbsub_sc = device_get_softc(dev);
parent = device_get_parent(dev);
if (nfsmbsub_sc->smbus) {
device_delete_child(dev, nfsmbsub_sc->smbus);
nfsmbsub_sc->smbus = NULL;
}
mtx_destroy(&nfsmbsub_sc->lock);
if (nfsmbsub_sc->res) {
bus_release_resource(parent, SYS_RES_IOPORT, nfsmbsub_sc->rid,
nfsmbsub_sc->res);
nfsmbsub_sc->res = NULL;
}
return (0);
}
static int
nfsmb_detach(device_t dev)
{
struct nfsmb_softc *nfsmb_sc = device_get_softc(dev);
if (nfsmb_sc->subdev) {
device_delete_child(dev, nfsmb_sc->subdev);
nfsmb_sc->subdev = NULL;
}
if (nfsmb_sc->smbus) {
device_delete_child(dev, nfsmb_sc->smbus);
nfsmb_sc->smbus = NULL;
}
mtx_destroy(&nfsmb_sc->lock);
if (nfsmb_sc->res) {
bus_release_resource(dev, SYS_RES_IOPORT, nfsmb_sc->rid,
nfsmb_sc->res);
nfsmb_sc->res = NULL;
}
return (0);
}
static int
nfsmb_callback(device_t dev, int index, void *data)
{
int error = 0;
switch (index) {
case SMB_REQUEST_BUS:
case SMB_RELEASE_BUS:
break;
default:
error = EINVAL;
}
return (error);
}
static int
nfsmb_wait(struct nfsmb_softc *sc)
{
u_char sts;
int error, count;
NFSMB_LOCK_ASSERT(sc);
if (NFSMB_SMBINB(sc, SMB_PRTCL) != 0)
{
count = 10000;
do {
DELAY(500);
} while (NFSMB_SMBINB(sc, SMB_PRTCL) != 0 && count--);
if (count == 0)
return (SMB_ETIMEOUT);
}
sts = NFSMB_SMBINB(sc, SMB_STS) & SMB_STS_STATUS;
NFSMB_DEBUG(printf("nfsmb: STS=0x%x\n", sts));
switch (sts) {
case SMB_STS_OK:
error = SMB_ENOERR;
break;
case SMB_STS_DANA:
error = SMB_ENOACK;
break;
case SMB_STS_B:
error = SMB_EBUSY;
break;
case SMB_STS_T:
error = SMB_ETIMEOUT;
break;
case SMB_STS_DCAD:
case SMB_STS_DAD:
case SMB_STS_HUP:
error = SMB_ENOTSUPP;
break;
default:
error = SMB_EBUSERR;
break;
}
return (error);
}
static int
nfsmb_quick(device_t dev, u_char slave, int how)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
u_char protocol;
int error;
protocol = SMB_PRTCL_QUICK;
switch (how) {
case SMB_QWRITE:
protocol |= SMB_PRTCL_WRITE;
NFSMB_DEBUG(printf("nfsmb: QWRITE to 0x%x", slave));
break;
case SMB_QREAD:
protocol |= SMB_PRTCL_READ;
NFSMB_DEBUG(printf("nfsmb: QREAD to 0x%x", slave));
break;
default:
panic("%s: unknown QUICK command (%x)!", __func__, how);
}
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, protocol);
error = nfsmb_wait(sc);
NFSMB_DEBUG(printf(", error=0x%x\n", error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_sendb(device_t dev, u_char slave, char byte)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
int error;
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, byte);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BYTE);
error = nfsmb_wait(sc);
NFSMB_DEBUG(printf("nfsmb: SENDB to 0x%x, byte=0x%x, error=0x%x\n", slave, byte, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_recvb(device_t dev, u_char slave, char *byte)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
int error;
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BYTE);
if ((error = nfsmb_wait(sc)) == SMB_ENOERR)
*byte = NFSMB_SMBINB(sc, SMB_DATA);
NFSMB_DEBUG(printf("nfsmb: RECVB from 0x%x, byte=0x%x, error=0x%x\n", slave, *byte, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_writeb(device_t dev, u_char slave, char cmd, char byte)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
int error;
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, cmd);
NFSMB_SMBOUTB(sc, SMB_DATA, byte);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BYTE_DATA);
error = nfsmb_wait(sc);
NFSMB_DEBUG(printf("nfsmb: WRITEB to 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, byte, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_readb(device_t dev, u_char slave, char cmd, char *byte)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
int error;
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, cmd);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BYTE_DATA);
if ((error = nfsmb_wait(sc)) == SMB_ENOERR)
*byte = NFSMB_SMBINB(sc, SMB_DATA);
NFSMB_DEBUG(printf("nfsmb: READB from 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, (unsigned char)*byte, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_writew(device_t dev, u_char slave, char cmd, short word)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
int error;
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, cmd);
NFSMB_SMBOUTB(sc, SMB_DATA, word);
NFSMB_SMBOUTB(sc, SMB_DATA + 1, word >> 8);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_WORD_DATA);
error = nfsmb_wait(sc);
NFSMB_DEBUG(printf("nfsmb: WRITEW to 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, word, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_readw(device_t dev, u_char slave, char cmd, short *word)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
int error;
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, cmd);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_WORD_DATA);
if ((error = nfsmb_wait(sc)) == SMB_ENOERR)
*word = NFSMB_SMBINB(sc, SMB_DATA) |
(NFSMB_SMBINB(sc, SMB_DATA + 1) << 8);
NFSMB_DEBUG(printf("nfsmb: READW from 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, (unsigned short)*word, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
u_char i;
int error;
if (count < 1 || count > 32)
return (SMB_EINVAL);
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, cmd);
NFSMB_SMBOUTB(sc, SMB_BCNT, count);
for (i = 0; i < count; i++)
NFSMB_SMBOUTB(sc, SMB_DATA + i, buf[i]);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BLOCK_DATA);
error = nfsmb_wait(sc);
NFSMB_DEBUG(printf("nfsmb: WRITEBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, count, cmd, error));
NFSMB_UNLOCK(sc);
return (error);
}
static int
nfsmb_bread(device_t dev, u_char slave, char cmd, u_char *count, char *buf)
{
struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev);
u_char data, len, i;
int error;
if (*count < 1 || *count > 32)
return (SMB_EINVAL);
NFSMB_LOCK(sc);
NFSMB_SMBOUTB(sc, SMB_CMD, cmd);
NFSMB_SMBOUTB(sc, SMB_ADDR, slave);
NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BLOCK_DATA);
if ((error = nfsmb_wait(sc)) == SMB_ENOERR) {
len = NFSMB_SMBINB(sc, SMB_BCNT);
for (i = 0; i < len; i++) {
data = NFSMB_SMBINB(sc, SMB_DATA + i);
if (i < *count)
buf[i] = data;
}
*count = len;
}
NFSMB_DEBUG(printf("nfsmb: READBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, *count, cmd, error));
NFSMB_UNLOCK(sc);
return (error);
}
static device_method_t nfsmb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, nfsmb_probe),
DEVMETHOD(device_attach, nfsmb_attach),
DEVMETHOD(device_detach, nfsmb_detach),
/* SMBus interface */
DEVMETHOD(smbus_callback, nfsmb_callback),
DEVMETHOD(smbus_quick, nfsmb_quick),
DEVMETHOD(smbus_sendb, nfsmb_sendb),
DEVMETHOD(smbus_recvb, nfsmb_recvb),
DEVMETHOD(smbus_writeb, nfsmb_writeb),
DEVMETHOD(smbus_readb, nfsmb_readb),
DEVMETHOD(smbus_writew, nfsmb_writew),
DEVMETHOD(smbus_readw, nfsmb_readw),
DEVMETHOD(smbus_bwrite, nfsmb_bwrite),
DEVMETHOD(smbus_bread, nfsmb_bread),
{ 0, 0 }
};
static device_method_t nfsmbsub_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, nfsmbsub_probe),
DEVMETHOD(device_attach, nfsmbsub_attach),
DEVMETHOD(device_detach, nfsmbsub_detach),
/* SMBus interface */
DEVMETHOD(smbus_callback, nfsmb_callback),
DEVMETHOD(smbus_quick, nfsmb_quick),
DEVMETHOD(smbus_sendb, nfsmb_sendb),
DEVMETHOD(smbus_recvb, nfsmb_recvb),
DEVMETHOD(smbus_writeb, nfsmb_writeb),
DEVMETHOD(smbus_readb, nfsmb_readb),
DEVMETHOD(smbus_writew, nfsmb_writew),
DEVMETHOD(smbus_readw, nfsmb_readw),
DEVMETHOD(smbus_bwrite, nfsmb_bwrite),
DEVMETHOD(smbus_bread, nfsmb_bread),
{ 0, 0 }
};
static devclass_t nfsmb_devclass;
static driver_t nfsmb_driver = {
"nfsmb",
nfsmb_methods,
sizeof(struct nfsmb_softc),
};
static driver_t nfsmbsub_driver = {
"nfsmb",
nfsmbsub_methods,
sizeof(struct nfsmb_softc),
};
DRIVER_MODULE(nfsmb, pci, nfsmb_driver, nfsmb_devclass, 0, 0);
DRIVER_MODULE(nfsmb, nfsmb, nfsmbsub_driver, nfsmb_devclass, 0, 0);
DRIVER_MODULE(smbus, nfsmb, smbus_driver, smbus_devclass, 0, 0);
MODULE_DEPEND(nfsmb, pci, 1, 1, 1);
MODULE_DEPEND(nfsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER);
MODULE_VERSION(nfsmb, 1);