Adapt to the new MII code. This required splitting some structures into

if_tlvar.h, since the ThunderLAN PHY driver needs to know some things
about it's parent (and since it can only attach to a ThunderLAN chip,
this is the easiest way).
This commit is contained in:
thorpej 1998-08-11 00:09:26 +00:00
parent 36db6106a8
commit b1fb3ecb0f
2 changed files with 278 additions and 182 deletions

View File

@ -1,4 +1,4 @@
/* $NetBSD: if_tl.c,v 1.14 1998/08/08 23:51:42 mycroft Exp $ */
/* $NetBSD: if_tl.c,v 1.15 1998/08/11 00:09:26 thorpej Exp $ */
/*
* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
@ -99,13 +99,25 @@
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/i2c/i2c_bus.h>
#include <dev/i2c/i2c_eeprom.h>
#include <dev/mii/mii_adapter.h>
#include <dev/mii/mii_adapters_id.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/tlphyvar.h>
#include <dev/pci/if_tlregs.h>
#include <dev/pci/if_tlvar.h>
#endif /* __NetBSD__ */
#if defined(__NetBSD__) && defined(__alpha__)
/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
#undef vtophys
#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)(va))
#endif
/* number of transmit/receive buffers */
#ifndef TL_NBUF
#define TL_NBUF 10
@ -116,57 +128,6 @@
#define TL_IDLETIME 10
#endif
struct tl_softc {
struct device sc_dev; /* base device */
bus_space_tag_t tl_bustag;
bus_space_handle_t tl_bushandle; /* CSR region handle */
void* tl_ih;
struct ethercom tl_ec;
u_int8_t tl_enaddr[ETHER_ADDR_LEN]; /* hardware adress */
struct ifmedia tl_ifmedia;
u_int16_t tl_flags;
#define TL_IFACT 0x0001 /* chip has interface activity */
u_int8_t tl_lasttx; /* we were without input this many seconds */
i2c_adapter_t i2cbus; /* i2c bus, for eeprom */
mii_data_t mii; /* mii bus */
struct Rx_list *Rx_list; /* Receive and transmit lists */
struct Tx_list *Tx_list;
struct Rx_list *active_Rx, *last_Rx;
struct Tx_list *active_Tx, *last_Tx;
struct Tx_list *Free_Tx;
int opkt; /* used to detect link up/down for AUI/BNC */
int stats_exesscoll; /* idem */
#ifdef TL_PRIV_STATS
int ierr_overr;
int ierr_code;
int ierr_crc;
int ierr_nomem;
int oerr_underr;
int oerr_deffered;
int oerr_coll;
int oerr_multicoll;
int oerr_latecoll;
int oerr_exesscoll;
int oerr_carrloss;
int oerr_mcopy;
#endif
};
#define tl_if tl_ec.ec_if
#define tl_bpf tl_if.if_bpf
typedef struct tl_softc tl_softc_t;
typedef u_long ioctl_cmd_t;
#define TL_HR_READ(sc, reg) \
bus_space_read_4(sc->tl_bustag, sc->tl_bushandle, (reg))
#define TL_HR_READ_BYTE(sc, reg) \
bus_space_read_1(sc->tl_bustag, sc->tl_bushandle, (reg))
#define TL_HR_WRITE(sc, reg, data) \
bus_space_write_4(sc->tl_bustag, sc->tl_bushandle, (reg), (data))
#define TL_HR_WRITE_BYTE(sc, reg, data) \
bus_space_write_1(sc->tl_bustag, sc->tl_bushandle, (reg), (data))
#define ETHER_MIN_TX (ETHERMIN + sizeof(struct ether_header))
static int tl_pci_match __P((struct device *, struct cfdata *, void *));
static void tl_pci_attach __P((struct device *, struct device *, void *));
static int tl_intr __P((void *));
@ -192,14 +153,18 @@ static void tl_intreg_write __P((tl_softc_t*, u_int32_t, u_int32_t));
static u_int8_t tl_intreg_read_byte __P((tl_softc_t*, u_int32_t));
static void tl_intreg_write_byte __P((tl_softc_t*, u_int32_t, u_int8_t));
void tl_mii_sync __P((struct tl_softc *));
void tl_mii_sendbits __P((struct tl_softc *, u_int32_t, int));
#if defined(TLDEBUG_RX)
static void ether_printheader __P((struct ether_header*));
#endif
void tl_mii_set __P((void*, u_int8_t));
void tl_mii_clr __P((void*, u_int8_t));
int tl_mii_read __P((void*, u_int8_t));
int tl_mii_read __P((struct device *, int, int));
void tl_mii_write __P((struct device *, int, int, int));
void tl_statchg __P((struct device *));
void tl_i2c_set __P((void*, u_int8_t));
void tl_i2c_clr __P((void*, u_int8_t));
@ -233,32 +198,22 @@ struct cfattach tl_ca = {
sizeof(tl_softc_t), tl_pci_match, tl_pci_attach
};
struct tl_product_desc {
u_int32_t tp_product;
u_int32_t tp_adapter;
int tp_flags;
const char *tp_desc;
};
/* tp_flags */
#define TPF_BROKEN_MEM 0x00000001 /* memory-mapped access is broken */
const struct tl_product_desc tl_compaq_products[] = {
{ PCI_PRODUCT_COMPAQ_N100TX, COMPAQ_NETLIGENT_10_100,
{ PCI_PRODUCT_COMPAQ_N100TX, TLPHY_MEDIA_NO_10_T,
0, "Compaq Netelligent 10/100 TX" },
{ PCI_PRODUCT_COMPAQ_N10T, COMPAQ_NETLIGENT_10,
{ PCI_PRODUCT_COMPAQ_N10T, TLPHY_MEDIA_10_5,
0, "Compaq Netelligent 10 T" },
{ PCI_PRODUCT_COMPAQ_IntNF3P, COMPAQ_INT_NETFLEX,
{ PCI_PRODUCT_COMPAQ_IntNF3P, TLPHY_MEDIA_10_2,
0, "Compaq Integrated NetFlex 3/P" },
{ PCI_PRODUCT_COMPAQ_IntPL100TX, COMPAQ_INT_NETLIGENT_10_100,
{ PCI_PRODUCT_COMPAQ_IntPL100TX, TLPHY_MEDIA_10_2|TLPHY_MEDIA_NO_10_T,
0, "Compaq ProLiant Integrated Netelligent 10/100 TX" },
{ PCI_PRODUCT_COMPAQ_DPNet100TX, COMPAQ_DUAL_NETLIGENT_10_100,
{ PCI_PRODUCT_COMPAQ_DPNet100TX, TLPHY_MEDIA_10_5|TLPHY_MEDIA_NO_10_T,
0, "Compaq Dual Port Netelligent 10/100 TX" },
{ PCI_PRODUCT_COMPAQ_DP4000, COMPAQ_DSKP4000,
{ PCI_PRODUCT_COMPAQ_DP4000, TLPHY_MEDIA_10_5,
0, "Compaq Deskpro 4000 5233MMX" },
{ PCI_PRODUCT_COMPAQ_NF3P_BNC, COMPAQ_NETFLEX_BNC,
{ PCI_PRODUCT_COMPAQ_NF3P_BNC, TLPHY_MEDIA_10_2,
0, "Compaq NetFlex 3/P w/ BNC" },
{ PCI_PRODUCT_COMPAQ_NF3P, COMPAQ_NETFLEX,
{ PCI_PRODUCT_COMPAQ_NF3P, TLPHY_MEDIA_10_5,
0, "Compaq NetFlex 3/P" },
{ 0, 0, NULL },
};
@ -269,7 +224,7 @@ const struct tl_product_desc tl_ti_products[] = {
* docking station; better product description?
* XXX Seems to have broken memory-mapped access.
*/
{ PCI_PRODUCT_TI_TLAN, TI_TLAN,
{ PCI_PRODUCT_TI_TLAN, 0,
TPF_BROKEN_MEM, "Texas Instruments ThunderLAN" },
{ 0, 0, NULL },
};
@ -349,6 +304,7 @@ tl_pci_attach(parent, self, aux)
tp = tl_lookup_product(pa->pa_id);
if (tp == NULL)
panic("tl_pci_attach: impossible");
sc->tl_product = tp;
/* Map the card space. */
ioh_valid = (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
@ -375,7 +331,6 @@ tl_pci_attach(parent, self, aux)
csr | PCI_COMMAND_MASTER_ENABLE);
printf("%s: %s\n", sc->sc_dev.dv_xname, tp->tp_desc);
sc->mii.adapter_id = tp->tp_adapter;
tl_reset(sc);
@ -430,19 +385,31 @@ tl_pci_attach(parent, self, aux)
*/
(void) shutdownhook_establish(tl_shutdown, sc);
sc->mii.adapter_softc = sc;
sc->mii.mii_setbit = tl_mii_set;
sc->mii.mii_clrbit = tl_mii_clr;
sc->mii.mii_readbit = tl_mii_read;
sc->mii.mii_readreg = NULL; /* Let generic MII function handle that */
sc->mii.mii_writereg = NULL;
if (config_found(self, (void*)&sc->mii, mii_adapter_print) == NULL) {
return;
}
ifmedia_init(&sc->tl_ifmedia, 0, tl_mediachange, tl_mediastatus);
mii_media_add(&sc->tl_ifmedia, &sc->mii);
ifmedia_set(&sc->tl_ifmedia, IFM_ETHER | IFM_NONE);
/*
* Initialize our media structures and probe the MII.
*
* Note that we don't care about the media instance. We
* are expecting to have multiple PHYs on the 10/100 cards,
* and on those cards we exclude the internal PHY from providing
* 10baseT. By ignoring the instance, it allows us to not have
* to specify it on the command line when switching media.
*/
sc->tl_mii.mii_ifp = ifp;
sc->tl_mii.mii_readreg = tl_mii_read;
sc->tl_mii.mii_writereg = tl_mii_write;
sc->tl_mii.mii_statchg = tl_statchg;
ifmedia_init(&sc->tl_mii.mii_media, IFM_IMASK, tl_mediachange,
tl_mediastatus);
mii_phy_probe(self, &sc->tl_mii, 0xffffffff);
#ifdef notyet /* XXX XXX XXX */
if (LIST_FIRST(&sc->tl_mii.mii_phys) == NULL) {
ifmedia_add(&sc->tl_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
ifmedia_set(&sc->tl_mii.mii_media, IFM_ETHER|IFM_NONE);
} else
ifmedia_set(&sc->tl_mii.mii_media, IFM_ETHER|IFM_AUTO);
#else
ifmedia_set(&sc->tl_mii.mii_media, IFM_ETHER|IFM_NONE);
#endif
bcopy(sc->sc_dev.dv_xname, sc->tl_if.if_xname, IFNAMSIZ);
sc->tl_if.if_softc = sc;
@ -457,7 +424,6 @@ tl_pci_attach(parent, self, aux)
bpfattach(&sc->tl_bpf, &sc->tl_if, DLT_EN10MB,
sizeof(struct ether_header));
#endif
sc->mii.mii_media_active = IFM_NONE;
}
static void
@ -498,7 +464,7 @@ tl_reset(sc)
/* Unreset MII */
netsio_set(sc, TL_NETSIO_NMRST);
DELAY(100000);
sc->mii.mii_media_status &= ~IFM_ACTIVE;
sc->tl_mii.mii_media_status &= ~IFM_ACTIVE;
sc->tl_flags = 0;
sc->opkt = 0;
sc->stats_exesscoll = 0;
@ -545,7 +511,7 @@ static void tl_shutdown(v)
free(sc->Tx_list, M_DEVBUF);
sc->Tx_list = NULL;
sc->tl_if.if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
sc->mii.mii_media_status &= ~IFM_ACTIVE;
sc->tl_mii.mii_media_status &= ~IFM_ACTIVE;
sc->tl_flags = 0;
}
@ -637,10 +603,8 @@ static int tl_init(sc)
}
bzero(nullbuf, ETHER_MIN_TX);
/* set media if needed */
if (IFM_SUBTYPE(sc->mii.mii_media_active) != IFM_NONE) {
mii_mediachg(&sc->mii);
}
/* set media */
mii_mediachg(&sc->tl_mii);
/* start ticks calls */
timeout(tl_ticks, sc, hz);
@ -694,71 +658,128 @@ tl_intreg_write_byte(sc, reg, val)
TL_HR_WRITE_BYTE(sc, TL_HOST_DIO_DATA + (reg & 0x03), val);
}
void tl_mii_set(v, bit)
void *v;
u_int8_t bit;
void
tl_mii_sync(sc)
struct tl_softc *sc;
{
tl_softc_t *sc = v;
int i;
switch (bit) {
case MII_DATA:
netsio_set(sc, TL_NETSIO_MDATA);
break;
case MII_CLOCK:
netsio_set(sc, TL_NETSIO_MCLK);
break;
case MII_TXEN:
netsio_set(sc, TL_NETSIO_MTXEN);
break;
default:
printf("tl_mii_set: unknown bit %d\n", bit);
}
}
void tl_mii_clr(v, bit)
void *v;
u_int8_t bit;
{
tl_softc_t *sc = v;
switch (bit) {
case MII_DATA:
netsio_clr(sc, TL_NETSIO_MDATA);
break;
case MII_CLOCK:
netsio_clr(sc, TL_NETSIO_MTXEN);
for (i = 0; i < 32; i++) {
netsio_clr(sc, TL_NETSIO_MCLK);
break;
case MII_TXEN:
netsio_clr(sc, TL_NETSIO_MTXEN);
break;
default:
printf("tl_mii_clr: unknown bit %d\n", bit);
netsio_set(sc, TL_NETSIO_MCLK);
}
return;
}
int tl_mii_read(v, bit)
void *v;
u_int8_t bit;
void
tl_mii_sendbits(sc, data, nbits)
struct tl_softc *sc;
u_int32_t data;
int nbits;
{
tl_softc_t *sc = v;
int i;
switch (bit) {
case MII_DATA:
return netsio_read(sc, TL_NETSIO_MDATA);
break;
case MII_CLOCK:
return netsio_read(sc, TL_NETSIO_MCLK);
break;
case MII_TXEN:
return netsio_read(sc, TL_NETSIO_MTXEN);
break;
default:
printf("tl_mii_read: unknown bit %d\n", bit);
return -1;
netsio_set(sc, TL_NETSIO_MTXEN);
for (i = 1 << (nbits - 1); i; i = i >> 1) {
netsio_clr(sc, TL_NETSIO_MCLK);
netsio_read(sc, TL_NETSIO_MCLK);
if (data & i)
netsio_set(sc, TL_NETSIO_MDATA);
else
netsio_clr(sc, TL_NETSIO_MDATA);
netsio_set(sc, TL_NETSIO_MCLK);
netsio_read(sc, TL_NETSIO_MCLK);
}
}
int
tl_mii_read(self, phy, reg)
struct device *self;
int phy, reg;
{
struct tl_softc *sc = (struct tl_softc *)self;
int val = 0, i, err;
/*
* Read the PHY register by manually driving the MII control lines.
*/
tl_mii_sync(sc);
tl_mii_sendbits(sc, MII_COMMAND_START, 2);
tl_mii_sendbits(sc, MII_COMMAND_READ, 2);
tl_mii_sendbits(sc, phy, 5);
tl_mii_sendbits(sc, reg, 5);
netsio_clr(sc, TL_NETSIO_MTXEN);
netsio_clr(sc, TL_NETSIO_MCLK);
netsio_set(sc, TL_NETSIO_MCLK);
netsio_clr(sc, TL_NETSIO_MCLK);
err = netsio_read(sc, TL_NETSIO_MDATA);
netsio_set(sc, TL_NETSIO_MCLK);
/* Even if an error occurs, must still clock out the cycle. */
for (i = 0; i < 16; i++) {
val <<= 1;
netsio_clr(sc, TL_NETSIO_MCLK);
if (err == 0 && netsio_read(sc, TL_NETSIO_MDATA))
val |= 1;
netsio_set(sc, TL_NETSIO_MCLK);
}
netsio_clr(sc, TL_NETSIO_MCLK);
netsio_set(sc, TL_NETSIO_MCLK);
return (err ? 0 : val);
}
void
tl_mii_write(self, phy, reg, val)
struct device *self;
int phy, reg, val;
{
struct tl_softc *sc = (struct tl_softc *)self;
/*
* Write the PHY register by manually driving the MII control lines.
*/
tl_mii_sync(sc);
tl_mii_sendbits(sc, MII_COMMAND_START, 2);
tl_mii_sendbits(sc, MII_COMMAND_WRITE, 2);
tl_mii_sendbits(sc, phy, 5);
tl_mii_sendbits(sc, reg, 5);
tl_mii_sendbits(sc, MII_COMMAND_ACK, 2);
tl_mii_sendbits(sc, val, 16);
netsio_clr(sc, TL_NETSIO_MCLK);
netsio_set(sc, TL_NETSIO_MCLK);
}
void
tl_statchg(self)
struct device *self;
{
tl_softc_t *sc = (struct tl_softc *)self;
u_int32_t reg;
#ifdef TLDEBUG
printf("tl_statchg, media %x\n", sc->tl_ifmedia.ifm_media);
#endif
/*
* We must keep the ThunderLAN and the PHY in sync as
* to the status of full-duplex!
*/
reg = tl_intreg_read_byte(sc, TL_INT_NET + TL_INT_NetCmd);
if (sc->tl_mii.mii_media_active & IFM_FDX)
reg |= TL_NETCOMMAND_DUPLEX;
else
reg &= ~TL_NETCOMMAND_DUPLEX;
tl_intreg_write_byte(sc, TL_INT_NET + TL_INT_NetCmd, reg);
/* XXX Update ifp->if_baudrate */
}
void tl_i2c_set(v, bit)
void *v;
u_int8_t bit;
@ -1147,7 +1168,7 @@ tl_ifioctl(ifp, cmd, data)
break;
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->tl_ifmedia, cmd);
error = ifmedia_ioctl(ifp, ifr, &sc->tl_mii.mii_media, cmd);
break;
default:
error = EINVAL;
@ -1328,25 +1349,10 @@ static int
tl_mediachange(ifp)
struct ifnet *ifp;
{
tl_softc_t *sc = ifp->if_softc;
int err;
u_int32_t reg;
int oldmedia;
#ifdef TLDEBUG
printf("tl_mediachange, media %x\n", sc->tl_ifmedia.ifm_media);
#endif
oldmedia = sc->mii.mii_media_active;
sc->mii.mii_media_active = sc->tl_ifmedia.ifm_media;
if ((err = mii_mediachg(&sc->mii)) != 0)
sc->mii.mii_media_active = oldmedia;
reg = tl_intreg_read_byte(sc, TL_INT_NET + TL_INT_NetCmd);
if (sc->mii.mii_media_active & IFM_FDX)
reg |= TL_NETCOMMAND_DUPLEX;
else
reg &= ~TL_NETCOMMAND_DUPLEX;
tl_intreg_write_byte(sc, TL_INT_NET + TL_INT_NetCmd, reg);
return err;
if (ifp->if_flags & IFF_UP)
tl_init(ifp->if_softc);
return (0);
}
static void
@ -1355,17 +1361,10 @@ tl_mediastatus(ifp, ifmr)
struct ifmediareq *ifmr;
{
tl_softc_t *sc = ifp->if_softc;
if (IFM_SUBTYPE(sc->mii.mii_media_active) == IFM_10_2 ||
IFM_SUBTYPE(sc->mii.mii_media_active) == IFM_10_5)
if (sc->tl_flags & TL_IFACT)
sc->mii.mii_media_status = IFM_AVALID | IFM_ACTIVE;
else
sc->mii.mii_media_status = IFM_AVALID;
else
mii_pollstat(&sc->mii);
ifmr->ifm_active = sc->mii.mii_media_active;
ifmr->ifm_status = sc->mii.mii_media_status;
mii_pollstat(&sc->tl_mii);
ifmr->ifm_active = sc->tl_mii.mii_media_active;
ifmr->ifm_status = sc->tl_mii.mii_media_status;
}
static int tl_add_RxBuff(Rx, oldm)

97
sys/dev/pci/if_tlvar.h Normal file
View File

@ -0,0 +1,97 @@
/* $NetBSD: if_tlvar.h,v 1.1 1998/08/11 00:09:26 thorpej Exp $ */
/*
* Copyright (c) 1997 Manuel Bouyer. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Manuel Bouyer.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 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.
*/
/*
* Texas Instruments ThunderLAN ethernet controller
* ThunderLAN Programmer's Guide (TI Literature Number SPWU013A)
* available from www.ti.com
*/
struct tl_product_desc {
u_int32_t tp_product;
int tp_tlphymedia;
int tp_flags;
const char *tp_desc;
};
/* tp_flags */
#define TPF_BROKEN_MEM 0x00000001 /* memory-mapped access is broken */
struct tl_softc {
struct device sc_dev; /* base device */
bus_space_tag_t tl_bustag;
bus_space_handle_t tl_bushandle; /* CSR region handle */
const struct tl_product_desc *tl_product;
void* tl_ih;
struct ethercom tl_ec;
u_int8_t tl_enaddr[ETHER_ADDR_LEN]; /* hardware adress */
u_int16_t tl_flags;
#define TL_IFACT 0x0001 /* chip has interface activity */
u_int8_t tl_lasttx; /* we were without input this many seconds */
i2c_adapter_t i2cbus; /* i2c bus, for eeprom */
mii_data_t tl_mii; /* mii bus */
struct Rx_list *Rx_list; /* Receive and transmit lists */
struct Tx_list *Tx_list;
struct Rx_list *active_Rx, *last_Rx;
struct Tx_list *active_Tx, *last_Tx;
struct Tx_list *Free_Tx;
int opkt; /* used to detect link up/down for AUI/BNC */
int stats_exesscoll; /* idem */
#ifdef TL_PRIV_STATS
int ierr_overr;
int ierr_code;
int ierr_crc;
int ierr_nomem;
int oerr_underr;
int oerr_deffered;
int oerr_coll;
int oerr_multicoll;
int oerr_latecoll;
int oerr_exesscoll;
int oerr_carrloss;
int oerr_mcopy;
#endif
};
#define tl_if tl_ec.ec_if
#define tl_bpf tl_if.if_bpf
typedef struct tl_softc tl_softc_t;
typedef u_long ioctl_cmd_t;
#define TL_HR_READ(sc, reg) \
bus_space_read_4(sc->tl_bustag, sc->tl_bushandle, (reg))
#define TL_HR_READ_BYTE(sc, reg) \
bus_space_read_1(sc->tl_bustag, sc->tl_bushandle, (reg))
#define TL_HR_WRITE(sc, reg, data) \
bus_space_write_4(sc->tl_bustag, sc->tl_bushandle, (reg), (data))
#define TL_HR_WRITE_BYTE(sc, reg, data) \
bus_space_write_1(sc->tl_bustag, sc->tl_bushandle, (reg), (data))
#define ETHER_MIN_TX (ETHERMIN + sizeof(struct ether_header))