/* $NetBSD: if_url.c,v 1.98 2024/06/30 16:35:19 riastradh Exp $ */
/*
* Copyright (c) 2001, 2002
* Shingo WATANABE <
[email protected]>. 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. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*
*/
/*
* The RTL8150L(Realtek USB to fast ethernet controller) spec can be found at
*
ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/8150v14.pdf
*
ftp://152.104.125.40/lancard/data_sheet/8150/8150v14.pdf
*/
/*
* TODO:
* Interrupt Endpoint support
* External PHYs
* powerhook() support?
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_url.c,v 1.98 2024/06/30 16:35:19 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
#include "opt_usb.h"
#endif
#include <sys/param.h>
#include <net/if_ether.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#include <dev/mii/urlphyreg.h>
#include <dev/usb/usbnet.h>
#include <dev/usb/if_urlreg.h>
/* Function declarations */
static int url_match(device_t, cfdata_t, void *);
static void url_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(url, sizeof(struct usbnet), url_match, url_attach,
usbnet_detach, usbnet_activate);
static unsigned url_uno_tx_prepare(struct usbnet *, struct mbuf *,
struct usbnet_chain *);
static void url_uno_rx_loop(struct usbnet *, struct usbnet_chain *, uint32_t);
static int url_uno_mii_read_reg(struct usbnet *, int, int, uint16_t *);
static int url_uno_mii_write_reg(struct usbnet *, int, int, uint16_t);
static void url_uno_stop(struct ifnet *, int);
static void url_uno_mii_statchg(struct ifnet *);
static int url_uno_init(struct ifnet *);
static void url_uno_mcast(struct ifnet *);
static void url_reset(struct usbnet *);
static int url_csr_read_1(struct usbnet *, int);
static int url_csr_read_2(struct usbnet *, int);
static int url_csr_write_1(struct usbnet *, int, int);
static int url_csr_write_2(struct usbnet *, int, int);
static int url_csr_write_4(struct usbnet *, int, int);
static int url_mem(struct usbnet *, int, int, void *, int);
static const struct usbnet_ops url_ops = {
.uno_stop = url_uno_stop,
.uno_mcast = url_uno_mcast,
.uno_read_reg = url_uno_mii_read_reg,
.uno_write_reg = url_uno_mii_write_reg,
.uno_statchg = url_uno_mii_statchg,
.uno_tx_prepare = url_uno_tx_prepare,
.uno_rx_loop = url_uno_rx_loop,
.uno_init = url_uno_init,
};
/* Macros */
#ifdef URL_DEBUG
#define DPRINTF(x) if (urldebug) printf x
#define DPRINTFN(n, x) if (urldebug >= (n)) printf x
int urldebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n, x)
#endif
#define URL_SETBIT(un, reg, x) \
url_csr_write_1(un, reg, url_csr_read_1(un, reg) | (x))
#define URL_SETBIT2(un, reg, x) \
url_csr_write_2(un, reg, url_csr_read_2(un, reg) | (x))
#define URL_CLRBIT(un, reg, x) \
url_csr_write_1(un, reg, url_csr_read_1(un, reg) & ~(x))
#define URL_CLRBIT2(un, reg, x) \
url_csr_write_2(un, reg, url_csr_read_2(un, reg) & ~(x))
static const struct url_type {
struct usb_devno url_dev;
uint16_t url_flags;
#define URL_EXT_PHY 0x0001
} url_devs [] = {
/* MELCO LUA-KTX */
{{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX }, 0},
/* Realtek RTL8150L Generic (GREEN HOUSE USBKR100) */
{{ USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8150L}, 0},
/* Longshine LCS-8138TX */
{{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_LCS8138TX}, 0},
/* Micronet SP128AR */
{{ USB_VENDOR_MICRONET, USB_PRODUCT_MICRONET_SP128AR}, 0},
/* OQO model 01 */
{{ USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01}, 0},
};
#define url_lookup(v, p) ((const struct url_type *)usb_lookup(url_devs, v, p))
/* Probe */
static int
url_match(device_t parent, cfdata_t match, void *aux)
{
struct usb_attach_arg *uaa = aux;
return url_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
}
/* Attach */
static void
url_attach(device_t parent, device_t self, void *aux)
{
USBNET_MII_DECL_DEFAULT(unm);
struct usbnet * const un = device_private(self);
struct usb_attach_arg *uaa = aux;
struct usbd_device *dev = uaa->uaa_device;
struct usbd_interface *iface;
usbd_status err;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
char *devinfop;
int i;
aprint_naive("\n");
aprint_normal("\n");
devinfop = usbd_devinfo_alloc(dev, 0);
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
un->un_dev = self;
un->un_udev = dev;
un->un_sc = un;
un->un_ops = &url_ops;
un->un_rx_xfer_flags = USBD_SHORT_XFER_OK;
un->un_tx_xfer_flags = USBD_FORCE_SHORT_XFER;
un->un_rx_list_cnt = URL_RX_LIST_CNT;
un->un_tx_list_cnt = URL_TX_LIST_CNT;
un->un_rx_bufsz = URL_BUFSZ;
un->un_tx_bufsz = URL_BUFSZ;
/* Move the device into the configured state. */
err = usbd_set_config_no(dev, URL_CONFIG_NO, 1);
if (err) {
aprint_error_dev(self, "failed to set configuration"
", err=%s\n", usbd_errstr(err));
return;
}
/* get control interface */
err = usbd_device2interface_handle(dev, URL_IFACE_INDEX, &iface);
if (err) {
aprint_error_dev(self, "failed to get interface, err=%s\n",
usbd_errstr(err));
return;
}
un->un_iface = iface;
un->un_flags = url_lookup(uaa->uaa_vendor, uaa->uaa_product)->url_flags;
#if 0
if (un->un_flags & URL_EXT_PHY) {
un->un_read_reg_cb = url_ext_mii_read_reg;
un->un_write_reg_cb = url_ext_mii_write_reg;
}
#endif
/* get interface descriptor */
id = usbd_get_interface_descriptor(un->un_iface);
/* find endpoints */
un->un_ed[USBNET_ENDPT_RX] = un->un_ed[USBNET_ENDPT_TX] =
un->un_ed[USBNET_ENDPT_INTR] = 0;
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(un->un_iface, i);
if (ed == NULL) {
aprint_error_dev(self,
"couldn't get endpoint %d\n", i);
return;
}
if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
un->un_ed[USBNET_ENDPT_RX] = ed->bEndpointAddress;
else if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT)
un->un_ed[USBNET_ENDPT_TX] = ed->bEndpointAddress;
else if ((ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT &&
UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
un->un_ed[USBNET_ENDPT_INTR] = ed->bEndpointAddress;
}
if (un->un_ed[USBNET_ENDPT_RX] == 0 ||
un->un_ed[USBNET_ENDPT_TX] == 0 ||
un->un_ed[USBNET_ENDPT_INTR] == 0) {
aprint_error_dev(self, "missing endpoint\n");
return;
}
/* Set these up now for url_mem(). */
usbnet_attach(un);
/* reset the adapter */
url_reset(un);
/* Get Ethernet Address */
err = url_mem(un, URL_CMD_READMEM, URL_IDR0, (void *)un->un_eaddr,
ETHER_ADDR_LEN);
if (err) {
aprint_error_dev(self, "read MAC address failed\n");
return;
}
/* initialize interface information */
usbnet_attach_ifp(un, IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST,
0, &unm);
}
/* read/write memory */
static int
url_mem(struct usbnet *un, int cmd, int offset, void *buf, int len)
{
usb_device_request_t req;
usbd_status err;
DPRINTFN(0x200,
("%s: %s: enter\n", device_xname(un->un_dev), __func__));
if (usbnet_isdying(un)) {
if (cmd == URL_CMD_READMEM)
memset(buf, 0, len);
return 0;
}
if (cmd == URL_CMD_READMEM)
req.bmRequestType = UT_READ_VENDOR_DEVICE;
else
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = URL_REQ_MEM;
USETW(req.wValue, offset);
USETW(req.wIndex, 0x0000);
USETW(req.wLength, len);
err = usbd_do_request(un->un_udev, &req, buf);
if (err) {
DPRINTF(("%s: url_mem(): %s failed. off=%04x, err=%d\n",
device_xname(un->un_dev),
cmd == URL_CMD_READMEM ? "read" : "write",
offset, err));
if (cmd == URL_CMD_READMEM)
memset(buf, 0, len);
}
return err;
}
/* read 1byte from register */
static int
url_csr_read_1(struct usbnet *un, int reg)
{
uint8_t val = 0;
DPRINTFN(0x100,
("%s: %s: enter\n", device_xname(un->un_dev), __func__));
return url_mem(un, URL_CMD_READMEM, reg, &val, 1) ? 0 : val;
}
/* read 2bytes from register */
static int
url_csr_read_2(struct usbnet *un, int reg)
{
uWord val;
DPRINTFN(0x100,
("%s: %s: enter\n", device_xname(un->un_dev), __func__));
USETW(val, 0);
return url_mem(un, URL_CMD_READMEM, reg, &val, 2) ? 0 : UGETW(val);
}
/* write 1byte to register */
static int
url_csr_write_1(struct usbnet *un, int reg, int aval)
{
uint8_t val = aval;
DPRINTFN(0x100,
("%s: %s: enter\n", device_xname(un->un_dev), __func__));
return url_mem(un, URL_CMD_WRITEMEM, reg, &val, 1) ? -1 : 0;
}
/* write 2bytes to register */
static int
url_csr_write_2(struct usbnet *un, int reg, int aval)
{
uWord val;
DPRINTFN(0x100,
("%s: %s: enter\n", device_xname(un->un_dev), __func__));
USETW(val, aval);
return url_mem(un, URL_CMD_WRITEMEM, reg, &val, 2) ? -1 : 0;
}
/* write 4bytes to register */
static int
url_csr_write_4(struct usbnet *un, int reg, int aval)
{
uDWord val;
DPRINTFN(0x100,
("%s: %s: enter\n", device_xname(un->un_dev), __func__));
USETDW(val, aval);
return url_mem(un, URL_CMD_WRITEMEM, reg, &val, 4) ? -1 : 0;
}
static int
url_uno_init(struct ifnet *ifp)
{
struct usbnet * const un = ifp->if_softc;
const u_char *eaddr;
int i;
DPRINTF(("%s: %s: enter\n", device_xname(un->un_dev), __func__));
url_reset(un);
eaddr = CLLADDR(ifp->if_sadl);
for (i = 0; i < ETHER_ADDR_LEN; i++)
url_csr_write_1(un, URL_IDR0 + i, eaddr[i]);
/* Init transmission control register */
URL_CLRBIT(un, URL_TCR,
URL_TCR_TXRR1 | URL_TCR_TXRR0 |
URL_TCR_IFG1 | URL_TCR_IFG0 |
URL_TCR_NOCRC);
/* Init receive control register */
URL_SETBIT2(un, URL_RCR, URL_RCR_TAIL | URL_RCR_AD | URL_RCR_AB);
/* Enable RX and TX */
URL_SETBIT(un, URL_CR, URL_CR_TE | URL_CR_RE);
return 0;
}
static void
url_reset(struct usbnet *un)
{
int i;
DPRINTF(("%s: %s: enter\n", device_xname(un->un_dev), __func__));
if (usbnet_isdying(un))
return;
URL_SETBIT(un, URL_CR, URL_CR_SOFT_RST);
for (i = 0; i < URL_TX_TIMEOUT; i++) {
if (usbnet_isdying(un))
return;
if (!(url_csr_read_1(un, URL_CR) & URL_CR_SOFT_RST))
break;
delay(10); /* XXX */
}
delay(10000); /* XXX */
}
static void
url_uno_mcast(struct ifnet *ifp)
{
struct usbnet * const un = ifp->if_softc;
struct ethercom *ec = usbnet_ec(un);
struct ether_multi *enm;
struct ether_multistep step;
uint32_t mchash[2] = { 0, 0 };
uint32_t h = 0, rcr;
DPRINTF(("%s: %s: enter\n", device_xname(un->un_dev), __func__));
if (usbnet_isdying(un))
return;
rcr = url_csr_read_2(un, URL_RCR);
rcr &= ~(URL_RCR_AAP | URL_RCR_AAM | URL_RCR_AM);
ETHER_LOCK(ec);
if (usbnet_ispromisc(un)) {
ec->ec_flags |= ETHER_F_ALLMULTI;
ETHER_UNLOCK(ec);
/* run promisc. mode */
rcr |= URL_RCR_AAM; /* ??? */
rcr |= URL_RCR_AAP;
goto update;
}
ec->ec_flags &= ~ETHER_F_ALLMULTI;
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) {
ec->ec_flags |= ETHER_F_ALLMULTI;
ETHER_UNLOCK(ec);
/* accept all multicast frames */
rcr |= URL_RCR_AAM;
goto update;
}
h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN);
/* 1(31) and 5(30:26) bit sampling */
mchash[h >> 31] |= 1 << ((h >> 26) & 0x1f);
ETHER_NEXT_MULTI(step, enm);
}
ETHER_UNLOCK(ec);
if (h != 0)
rcr |= URL_RCR_AM; /* activate mcast hash filter */
url_csr_write_4(un, URL_MAR0, mchash[0]);
url_csr_write_4(un, URL_MAR4, mchash[1]);
update:
url_csr_write_2(un, URL_RCR, rcr);
}
static unsigned
url_uno_tx_prepare(struct usbnet *un, struct mbuf *m, struct usbnet_chain *c)
{
int total_len;
DPRINTF(("%s: %s: enter\n", device_xname(un->un_dev),__func__));
KASSERT(un->un_tx_bufsz >= URL_MIN_FRAME_LEN);
if ((unsigned)m->m_pkthdr.len > un->un_tx_bufsz)
return 0;
/* Copy the mbuf data into a contiguous buffer */
m_copydata(m, 0, m->m_pkthdr.len, c->unc_buf);
total_len = m->m_pkthdr.len;
if (total_len < URL_MIN_FRAME_LEN) {
memset(c->unc_buf + total_len, 0,
URL_MIN_FRAME_LEN - total_len);
total_len = URL_MIN_FRAME_LEN;
}
DPRINTF(("%s: %s: send %d bytes\n", device_xname(un->un_dev),
__func__, total_len));
return total_len;
}
static void
url_uno_rx_loop(struct usbnet *un, struct usbnet_chain *c, uint32_t total_len)
{
struct ifnet *ifp = usbnet_ifp(un);
url_rxhdr_t rxhdr;
DPRINTF(("%s: %s: enter\n", device_xname(un->un_dev),__func__));
if (total_len <= ETHER_CRC_LEN || total_len <= sizeof(rxhdr)) {
if_statinc(ifp, if_ierrors);
return;
}
memcpy(&rxhdr, c->unc_buf + total_len - ETHER_CRC_LEN, sizeof(rxhdr));
DPRINTF(("%s: RX Status: %dbytes%s%s%s%s packets\n",
device_xname(un->un_dev),
UGETW(rxhdr) & URL_RXHDR_BYTEC_MASK,
UGETW(rxhdr) & URL_RXHDR_VALID_MASK ? ", Valid" : "",
UGETW(rxhdr) & URL_RXHDR_RUNTPKT_MASK ? ", Runt" : "",
UGETW(rxhdr) & URL_RXHDR_PHYPKT_MASK ? ", Physical match" : "",
UGETW(rxhdr) & URL_RXHDR_MCASTPKT_MASK ? ", Multicast" : ""));
if ((UGETW(rxhdr) & URL_RXHDR_VALID_MASK) == 0) {
if_statinc(ifp, if_ierrors);
return;
}
total_len -= ETHER_CRC_LEN;
DPRINTF(("%s: %s: deliver %d\n", device_xname(un->un_dev),
__func__, total_len));
usbnet_enqueue(un, c->unc_buf, total_len, 0, 0, 0);
}
#if 0
static void url_intr(void)
{
}
#endif
/* Stop the adapter and free any mbufs allocated to the RX and TX lists. */
static void
url_uno_stop(struct ifnet *ifp, int disable)
{
struct usbnet * const un = ifp->if_softc;
DPRINTF(("%s: %s: enter\n", device_xname(un->un_dev), __func__));
url_reset(un);
}
static int
url_uno_mii_read_reg(struct usbnet *un, int phy, int reg, uint16_t *val)
{
uint16_t data;
usbd_status err = USBD_NORMAL_COMPLETION;
DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x\n",
device_xname(un->un_dev), __func__, phy, reg));
/* XXX: one PHY only for the RTL8150 internal PHY */
if (phy != 0) {
DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
device_xname(un->un_dev), __func__, phy));
*val = 0;
return EINVAL;
}
switch (reg) {
case MII_BMCR: /* Control Register */
reg = URL_BMCR;
break;
case MII_BMSR: /* Status Register */
reg = URL_BMSR;
break;
case MII_PHYIDR1:
case MII_PHYIDR2:
*val = 0;
goto R_DONE;
break;
case MII_ANAR: /* Autonegotiation advertisement */
reg = URL_ANAR;
break;
case MII_ANLPAR: /* Autonegotiation link partner abilities */
reg = URL_ANLP;
break;
case URLPHY_MSR: /* Media Status Register */
reg = URL_MSR;
break;
default:
printf("%s: %s: bad register %04x\n",
device_xname(un->un_dev), __func__, reg);
return EINVAL;
}
if (reg == URL_MSR)
data = url_csr_read_1(un, reg);
else
data = url_csr_read_2(un, reg);
*val = data;
R_DONE:
DPRINTFN(0xff, ("%s: %s: phy=%d reg=0x%04x => 0x%04hx\n",
device_xname(un->un_dev), __func__, phy, reg, *val));
return err;
}
static int
url_uno_mii_write_reg(struct usbnet *un, int phy, int reg, uint16_t val)
{
DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x val=0x%04hx\n",
device_xname(un->un_dev), __func__, phy, reg, val));
/* XXX: one PHY only for the RTL8150 internal PHY */
if (phy != 0) {
DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
device_xname(un->un_dev), __func__, phy));
return EINVAL;
}
switch (reg) {
case MII_BMCR: /* Control Register */
reg = URL_BMCR;
break;
case MII_BMSR: /* Status Register */
reg = URL_BMSR;
break;
case MII_PHYIDR1:
case MII_PHYIDR2:
return 0;
case MII_ANAR: /* Autonegotiation advertisement */
reg = URL_ANAR;
break;
case MII_ANLPAR: /* Autonegotiation link partner abilities */
reg = URL_ANLP;
break;
case URLPHY_MSR: /* Media Status Register */
reg = URL_MSR;
break;
default:
printf("%s: %s: bad register %04x\n",
device_xname(un->un_dev), __func__, reg);
return EINVAL;
}
if (reg == URL_MSR)
url_csr_write_1(un, reg, val);
else
url_csr_write_2(un, reg, val);
return 0;
}
static void
url_uno_mii_statchg(struct ifnet *ifp)
{
struct usbnet * const un = ifp->if_softc;
DPRINTF(("%s: %s: enter\n", ifp->if_xname, __func__));
/* XXX */
usbnet_set_link(un, true);
}
#if 0
/*
* external PHYs support, but not test.
*/
static usbd_status
url_ext_mii_read_reg(struct usbnet *un, int phy, int reg)
{
uint16_t val;
DPRINTF(("%s: %s: enter, phy=%d reg=0x%04x\n",
device_xname(un->un_dev), __func__, phy, reg));
url_csr_write_1(un, URL_PHYADD, phy & URL_PHYADD_MASK);
/*
* RTL8150L will initiate a MII management data transaction
* if PHYCNT_OWN bit is set 1 by software. After transaction,
* this bit is auto cleared by TRL8150L.
*/
url_csr_write_1(un, URL_PHYCNT,
(reg | URL_PHYCNT_PHYOWN) & ~URL_PHYCNT_RWCR);
for (i = 0; i < URL_TIMEOUT; i++) {
if ((url_csr_read_1(un, URL_PHYCNT) & URL_PHYCNT_PHYOWN) == 0)
break;
}
if (i == URL_TIMEOUT) {
printf("%s: MII read timed out\n", device_xname(un->un_dev));
}
val = url_csr_read_2(un, URL_PHYDAT);
DPRINTF(("%s: %s: phy=%d reg=0x%04x => 0x%04x\n",
device_xname(un->un_dev), __func__, phy, reg, val));
return USBD_NORMAL_COMPLETION;
}
static usbd_status
url_ext_mii_write_reg(struct usbnet *un, int phy, int reg, int data)
{
DPRINTF(("%s: %s: enter, phy=%d reg=0x%04x data=0x%04x\n",
device_xname(un->un_dev), __func__, phy, reg, data));
url_csr_write_2(un, URL_PHYDAT, data);
url_csr_write_1(un, URL_PHYADD, phy);
url_csr_write_1(un, URL_PHYCNT, reg | URL_PHYCNT_RWCR); /* Write */
for (i=0; i < URL_TIMEOUT; i++) {
if (url_csr_read_1(un, URL_PHYCNT) & URL_PHYCNT_PHYOWN)
break;
}
if (i == URL_TIMEOUT) {
printf("%s: MII write timed out\n",
device_xname(un->un_dev));
return USBD_TIMEOUT;
}
return USBD_NORMAL_COMPLETION;
}
#endif
#ifdef _MODULE
#include "ioconf.c"
#endif
USBNET_MODULE(url)
