NetBSD-5.0.2/sys/dev/usb/if_url.c
/* $NetBSD: if_url.c,v 1.32 2008/05/24 16:40:58 cube Exp $ */
/*
* Copyright (c) 2001, 2002
* Shingo WATANABE <nabe@nabechan.org>. 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 1.32 2008/05/24 16:40:58 cube Exp $");
#include "opt_inet.h"
#include "bpfilter.h"
#include "rnd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/rwlock.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/device.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m))
#include <net/if_ether.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/urlphyreg.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/if_urlreg.h>
/* Function declarations */
USB_DECLARE_DRIVER(url);
Static int url_openpipes(struct url_softc *);
Static int url_rx_list_init(struct url_softc *);
Static int url_tx_list_init(struct url_softc *);
Static int url_newbuf(struct url_softc *, struct url_chain *, struct mbuf *);
Static void url_start(struct ifnet *);
Static int url_send(struct url_softc *, struct mbuf *, int);
Static void url_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void url_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void url_tick(void *);
Static void url_tick_task(void *);
Static int url_ioctl(struct ifnet *, u_long, void *);
Static void url_stop_task(struct url_softc *);
Static void url_stop(struct ifnet *, int);
Static void url_watchdog(struct ifnet *);
Static int url_ifmedia_change(struct ifnet *);
Static void url_ifmedia_status(struct ifnet *, struct ifmediareq *);
Static void url_lock_mii(struct url_softc *);
Static void url_unlock_mii(struct url_softc *);
Static int url_int_miibus_readreg(device_ptr_t, int, int);
Static void url_int_miibus_writereg(device_ptr_t, int, int, int);
Static void url_miibus_statchg(device_ptr_t);
Static int url_init(struct ifnet *);
Static void url_setmulti(struct url_softc *);
Static void url_reset(struct url_softc *);
Static int url_csr_read_1(struct url_softc *, int);
Static int url_csr_read_2(struct url_softc *, int);
Static int url_csr_write_1(struct url_softc *, int, int);
Static int url_csr_write_2(struct url_softc *, int, int);
Static int url_csr_write_4(struct url_softc *, int, int);
Static int url_mem(struct url_softc *, int, int, void *, int);
/* Macros */
#ifdef URL_DEBUG
#define DPRINTF(x) if (urldebug) logprintf x
#define DPRINTFN(n,x) if (urldebug >= (n)) logprintf x
int urldebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#define URL_SETBIT(sc, reg, x) \
url_csr_write_1(sc, reg, url_csr_read_1(sc, reg) | (x))
#define URL_SETBIT2(sc, reg, x) \
url_csr_write_2(sc, reg, url_csr_read_2(sc, reg) | (x))
#define URL_CLRBIT(sc, reg, x) \
url_csr_write_1(sc, reg, url_csr_read_1(sc, reg) & ~(x))
#define URL_CLRBIT2(sc, reg, x) \
url_csr_write_2(sc, reg, url_csr_read_2(sc, reg) & ~(x))
static const struct url_type {
struct usb_devno url_dev;
u_int16_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 */
USB_MATCH(url)
{
USB_MATCH_START(url, uaa);
return (url_lookup(uaa->vendor, uaa->product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
}
/* Attach */
USB_ATTACH(url)
{
USB_ATTACH_START(url, sc, uaa);
usbd_device_handle dev = uaa->device;
usbd_interface_handle iface;
usbd_status err;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
char *devinfop;
struct ifnet *ifp;
struct mii_data *mii;
u_char eaddr[ETHER_ADDR_LEN];
int i, s;
sc->sc_dev = self;
devinfop = usbd_devinfo_alloc(dev, 0);
USB_ATTACH_SETUP;
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
/* Move the device into the configured state. */
err = usbd_set_config_no(dev, URL_CONFIG_NO, 1);
if (err) {
aprint_error_dev(self, "setting config no failed\n");
goto bad;
}
usb_init_task(&sc->sc_tick_task, url_tick_task, sc);
rw_init(&sc->sc_mii_rwlock);
usb_init_task(&sc->sc_stop_task, (void (*)(void *)) url_stop_task, sc);
/* 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));
goto bad;
}
sc->sc_udev = dev;
sc->sc_ctl_iface = iface;
sc->sc_flags = url_lookup(uaa->vendor, uaa->product)->url_flags;
/* get interface descriptor */
id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
/* find endpoints */
sc->sc_bulkin_no = sc->sc_bulkout_no = sc->sc_intrin_no = -1;
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i);
if (ed == NULL) {
aprint_error_dev(self,
"couldn't get endpoint %d\n", i);
goto bad;
}
if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
sc->sc_bulkin_no = ed->bEndpointAddress; /* RX */
else if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT)
sc->sc_bulkout_no = ed->bEndpointAddress; /* TX */
else if ((ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT &&
UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
sc->sc_intrin_no = ed->bEndpointAddress; /* Status */
}
if (sc->sc_bulkin_no == -1 || sc->sc_bulkout_no == -1 ||
sc->sc_intrin_no == -1) {
aprint_error_dev(self, "missing endpoint\n");
goto bad;
}
s = splnet();
/* reset the adapter */
url_reset(sc);
/* Get Ethernet Address */
err = url_mem(sc, URL_CMD_READMEM, URL_IDR0, (void *)eaddr,
ETHER_ADDR_LEN);
if (err) {
aprint_error_dev(self, "read MAC address failed\n");
splx(s);
goto bad;
}
/* Print Ethernet Address */
aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr));
/* initialize interface information */
ifp = GET_IFP(sc);
ifp->if_softc = sc;
ifp->if_mtu = ETHERMTU;
strncpy(ifp->if_xname, device_xname(self), IFNAMSIZ);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_start = url_start;
ifp->if_ioctl = url_ioctl;
ifp->if_watchdog = url_watchdog;
ifp->if_init = url_init;
ifp->if_stop = url_stop;
IFQ_SET_READY(&ifp->if_snd);
/*
* Do ifmedia setup.
*/
mii = &sc->sc_mii;
mii->mii_ifp = ifp;
mii->mii_readreg = url_int_miibus_readreg;
mii->mii_writereg = url_int_miibus_writereg;
#if 0
if (sc->sc_flags & URL_EXT_PHY) {
mii->mii_readreg = url_ext_miibus_readreg;
mii->mii_writereg = url_ext_miibus_writereg;
}
#endif
mii->mii_statchg = url_miibus_statchg;
mii->mii_flags = MIIF_AUTOTSLEEP;
sc->sc_ec.ec_mii = mii;
ifmedia_init(&mii->mii_media, 0,
url_ifmedia_change, url_ifmedia_status);
mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
if (LIST_FIRST(&mii->mii_phys) == NULL) {
ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
} else
ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
/* attach the interface */
if_attach(ifp);
Ether_ifattach(ifp, eaddr);
#if NRND > 0
rnd_attach_source(&sc->rnd_source, device_xname(self),
RND_TYPE_NET, 0);
#endif
usb_callout_init(sc->sc_stat_ch);
sc->sc_attached = 1;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, dev, USBDEV(sc->sc_dev));
USB_ATTACH_SUCCESS_RETURN;
bad:
sc->sc_dying = 1;
USB_ATTACH_ERROR_RETURN;
}
/* detach */
USB_DETACH(url)
{
USB_DETACH_START(url, sc);
struct ifnet *ifp = GET_IFP(sc);
int s;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
/* Detached before attached finished */
if (!sc->sc_attached)
return (0);
usb_uncallout(sc->sc_stat_ch, url_tick, sc);
/* Remove any pending tasks */
usb_rem_task(sc->sc_udev, &sc->sc_tick_task);
usb_rem_task(sc->sc_udev, &sc->sc_stop_task);
s = splusb();
if (--sc->sc_refcnt >= 0) {
/* Wait for processes to go away */
usb_detach_wait(USBDEV(sc->sc_dev));
}
if (ifp->if_flags & IFF_RUNNING)
url_stop(GET_IFP(sc), 1);
#if NRND > 0
rnd_detach_source(&sc->rnd_source);
#endif
mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY);
ether_ifdetach(ifp);
if_detach(ifp);
#ifdef DIAGNOSTIC
if (sc->sc_pipe_tx != NULL)
aprint_debug_dev(self, "detach has active tx endpoint.\n");
if (sc->sc_pipe_rx != NULL)
aprint_debug_dev(self, "detach has active rx endpoint.\n");
if (sc->sc_pipe_intr != NULL)
aprint_debug_dev(self, "detach has active intr endpoint.\n");
#endif
sc->sc_attached = 0;
splx(s);
rw_destroy(&sc->sc_mii_rwlock);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
return (0);
}
/* read/write memory */
Static int
url_mem(struct url_softc *sc, int cmd, int offset, void *buf, int len)
{
usb_device_request_t req;
usbd_status err;
if (sc == NULL)
return (0);
DPRINTFN(0x200,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
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);
sc->sc_refcnt++;
err = usbd_do_request(sc->sc_udev, &req, buf);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (err) {
DPRINTF(("%s: url_mem(): %s failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev),
cmd == URL_CMD_READMEM ? "read" : "write",
offset, err));
}
return (err);
}
/* read 1byte from register */
Static int
url_csr_read_1(struct url_softc *sc, int reg)
{
u_int8_t val = 0;
DPRINTFN(0x100,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (0);
return (url_mem(sc, URL_CMD_READMEM, reg, &val, 1) ? 0 : val);
}
/* read 2bytes from register */
Static int
url_csr_read_2(struct url_softc *sc, int reg)
{
uWord val;
DPRINTFN(0x100,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (0);
USETW(val, 0);
return (url_mem(sc, URL_CMD_READMEM, reg, &val, 2) ? 0 : UGETW(val));
}
/* write 1byte to register */
Static int
url_csr_write_1(struct url_softc *sc, int reg, int aval)
{
u_int8_t val = aval;
DPRINTFN(0x100,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (0);
return (url_mem(sc, URL_CMD_WRITEMEM, reg, &val, 1) ? -1 : 0);
}
/* write 2bytes to register */
Static int
url_csr_write_2(struct url_softc *sc, int reg, int aval)
{
uWord val;
DPRINTFN(0x100,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
USETW(val, aval);
if (sc->sc_dying)
return (0);
return (url_mem(sc, URL_CMD_WRITEMEM, reg, &val, 2) ? -1 : 0);
}
/* write 4bytes to register */
Static int
url_csr_write_4(struct url_softc *sc, int reg, int aval)
{
uDWord val;
DPRINTFN(0x100,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
USETDW(val, aval);
if (sc->sc_dying)
return (0);
return (url_mem(sc, URL_CMD_WRITEMEM, reg, &val, 4) ? -1 : 0);
}
Static int
url_init(struct ifnet *ifp)
{
struct url_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
const u_char *eaddr;
int i, rc, s;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (EIO);
s = splnet();
/* Cancel pending I/O and free all TX/RX buffers */
url_stop(ifp, 1);
eaddr = CLLADDR(ifp->if_sadl);
for (i = 0; i < ETHER_ADDR_LEN; i++)
url_csr_write_1(sc, URL_IDR0 + i, eaddr[i]);
/* Init transmission control register */
URL_CLRBIT(sc, URL_TCR,
URL_TCR_TXRR1 | URL_TCR_TXRR0 |
URL_TCR_IFG1 | URL_TCR_IFG0 |
URL_TCR_NOCRC);
/* Init receive control register */
URL_SETBIT2(sc, URL_RCR, URL_RCR_TAIL | URL_RCR_AD);
if (ifp->if_flags & IFF_BROADCAST)
URL_SETBIT2(sc, URL_RCR, URL_RCR_AB);
else
URL_CLRBIT2(sc, URL_RCR, URL_RCR_AB);
/* If we want promiscuous mode, accept all physical frames. */
if (ifp->if_flags & IFF_PROMISC)
URL_SETBIT2(sc, URL_RCR, URL_RCR_AAM|URL_RCR_AAP);
else
URL_CLRBIT2(sc, URL_RCR, URL_RCR_AAM|URL_RCR_AAP);
/* Initialize transmit ring */
if (url_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", USBDEVNAME(sc->sc_dev));
splx(s);
return (EIO);
}
/* Initialize receive ring */
if (url_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", USBDEVNAME(sc->sc_dev));
splx(s);
return (EIO);
}
/* Load the multicast filter */
url_setmulti(sc);
/* Enable RX and TX */
URL_SETBIT(sc, URL_CR, URL_CR_TE | URL_CR_RE);
if ((rc = mii_mediachg(mii)) == ENXIO)
rc = 0;
else if (rc != 0)
goto out;
if (sc->sc_pipe_tx == NULL || sc->sc_pipe_rx == NULL) {
if (url_openpipes(sc)) {
splx(s);
return (EIO);
}
}
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
usb_callout(sc->sc_stat_ch, hz, url_tick, sc);
out:
splx(s);
return rc;
}
Static void
url_reset(struct url_softc *sc)
{
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return;
URL_SETBIT(sc, URL_CR, URL_CR_SOFT_RST);
for (i = 0; i < URL_TX_TIMEOUT; i++) {
if (!(url_csr_read_1(sc, URL_CR) & URL_CR_SOFT_RST))
break;
delay(10); /* XXX */
}
delay(10000); /* XXX */
}
int
url_activate(device_ptr_t self, enum devact act)
{
struct url_softc *sc = device_private(self);
DPRINTF(("%s: %s: enter, act=%d\n", USBDEVNAME(sc->sc_dev),
__func__, act));
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
if_deactivate(&sc->sc_ec.ec_if);
sc->sc_dying = 1;
break;
}
return (0);
}
#define url_calchash(addr) (ether_crc32_be((addr), ETHER_ADDR_LEN) >> 26)
Static void
url_setmulti(struct url_softc *sc)
{
struct ifnet *ifp;
struct ether_multi *enm;
struct ether_multistep step;
u_int32_t hashes[2] = { 0, 0 };
int h = 0;
int mcnt = 0;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return;
ifp = GET_IFP(sc);
if (ifp->if_flags & IFF_PROMISC) {
URL_SETBIT2(sc, URL_RCR, URL_RCR_AAM|URL_RCR_AAP);
return;
} else if (ifp->if_flags & IFF_ALLMULTI) {
allmulti:
ifp->if_flags |= IFF_ALLMULTI;
URL_SETBIT2(sc, URL_RCR, URL_RCR_AAM);
URL_CLRBIT2(sc, URL_RCR, URL_RCR_AAP);
return;
}
/* first, zot all the existing hash bits */
url_csr_write_4(sc, URL_MAR0, 0);
url_csr_write_4(sc, URL_MAR4, 0);
/* now program new ones */
ETHER_FIRST_MULTI(step, &sc->sc_ec, enm);
while (enm != NULL) {
if (memcmp(enm->enm_addrlo, enm->enm_addrhi,
ETHER_ADDR_LEN) != 0)
goto allmulti;
h = url_calchash(enm->enm_addrlo);
if (h < 32)
hashes[0] |= (1 << h);
else
hashes[1] |= (1 << (h -32));
mcnt++;
ETHER_NEXT_MULTI(step, enm);
}
ifp->if_flags &= ~IFF_ALLMULTI;
URL_CLRBIT2(sc, URL_RCR, URL_RCR_AAM|URL_RCR_AAP);
if (mcnt){
URL_SETBIT2(sc, URL_RCR, URL_RCR_AM);
} else {
URL_CLRBIT2(sc, URL_RCR, URL_RCR_AM);
}
url_csr_write_4(sc, URL_MAR0, hashes[0]);
url_csr_write_4(sc, URL_MAR4, hashes[1]);
}
Static int
url_openpipes(struct url_softc *sc)
{
struct url_chain *c;
usbd_status err;
int i;
int error = 0;
if (sc->sc_dying)
return (EIO);
sc->sc_refcnt++;
/* Open RX pipe */
err = usbd_open_pipe(sc->sc_ctl_iface, sc->sc_bulkin_no,
USBD_EXCLUSIVE_USE, &sc->sc_pipe_rx);
if (err) {
printf("%s: open rx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
error = EIO;
goto done;
}
/* Open TX pipe */
err = usbd_open_pipe(sc->sc_ctl_iface, sc->sc_bulkout_no,
USBD_EXCLUSIVE_USE, &sc->sc_pipe_tx);
if (err) {
printf("%s: open tx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
error = EIO;
goto done;
}
#if 0
/* XXX: interrupt endpoint is not yet supported */
/* Open Interrupt pipe */
err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_intrin_no,
USBD_EXCLUSIVE_USE, &sc->sc_pipe_intr, sc,
&sc->sc_cdata.url_ibuf, URL_INTR_PKGLEN,
url_intr, USBD_DEFAULT_INTERVAL);
if (err) {
printf("%s: open intr pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
error = EIO;
goto done;
}
#endif
/* Start up the receive pipe. */
for (i = 0; i < URL_RX_LIST_CNT; i++) {
c = &sc->sc_cdata.url_rx_chain[i];
usbd_setup_xfer(c->url_xfer, sc->sc_pipe_rx,
c, c->url_buf, URL_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, url_rxeof);
(void)usbd_transfer(c->url_xfer);
DPRINTF(("%s: %s: start read\n", USBDEVNAME(sc->sc_dev),
__func__));
}
done:
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
return (error);
}
Static int
url_newbuf(struct url_softc *sc, struct url_chain *c, struct mbuf *m)
{
struct mbuf *m_new = NULL;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (m == NULL) {
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
if (m_new == NULL) {
printf("%s: no memory for rx list "
"-- packet dropped!\n", USBDEVNAME(sc->sc_dev));
return (ENOBUFS);
}
MCLGET(m_new, M_DONTWAIT);
if (!(m_new->m_flags & M_EXT)) {
printf("%s: no memory for rx list "
"-- packet dropped!\n", USBDEVNAME(sc->sc_dev));
m_freem(m_new);
return (ENOBUFS);
}
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
} else {
m_new = m;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
m_new->m_data = m_new->m_ext.ext_buf;
}
m_adj(m_new, ETHER_ALIGN);
c->url_mbuf = m_new;
return (0);
}
Static int
url_rx_list_init(struct url_softc *sc)
{
struct url_cdata *cd;
struct url_chain *c;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
cd = &sc->sc_cdata;
for (i = 0; i < URL_RX_LIST_CNT; i++) {
c = &cd->url_rx_chain[i];
c->url_sc = sc;
c->url_idx = i;
if (url_newbuf(sc, c, NULL) == ENOBUFS)
return (ENOBUFS);
if (c->url_xfer == NULL) {
c->url_xfer = usbd_alloc_xfer(sc->sc_udev);
if (c->url_xfer == NULL)
return (ENOBUFS);
c->url_buf = usbd_alloc_buffer(c->url_xfer, URL_BUFSZ);
if (c->url_buf == NULL) {
usbd_free_xfer(c->url_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static int
url_tx_list_init(struct url_softc *sc)
{
struct url_cdata *cd;
struct url_chain *c;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
cd = &sc->sc_cdata;
for (i = 0; i < URL_TX_LIST_CNT; i++) {
c = &cd->url_tx_chain[i];
c->url_sc = sc;
c->url_idx = i;
c->url_mbuf = NULL;
if (c->url_xfer == NULL) {
c->url_xfer = usbd_alloc_xfer(sc->sc_udev);
if (c->url_xfer == NULL)
return (ENOBUFS);
c->url_buf = usbd_alloc_buffer(c->url_xfer, URL_BUFSZ);
if (c->url_buf == NULL) {
usbd_free_xfer(c->url_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static void
url_start(struct ifnet *ifp)
{
struct url_softc *sc = ifp->if_softc;
struct mbuf *m_head = NULL;
DPRINTF(("%s: %s: enter, link=%d\n", USBDEVNAME(sc->sc_dev),
__func__, sc->sc_link));
if (sc->sc_dying)
return;
if (!sc->sc_link)
return;
if (ifp->if_flags & IFF_OACTIVE)
return;
IFQ_POLL(&ifp->if_snd, m_head);
if (m_head == NULL)
return;
if (url_send(sc, m_head, 0)) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
IFQ_DEQUEUE(&ifp->if_snd, m_head);
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m_head);
#endif
ifp->if_flags |= IFF_OACTIVE;
/* Set a timeout in case the chip goes out to lunch. */
ifp->if_timer = 5;
}
Static int
url_send(struct url_softc *sc, struct mbuf *m, int idx)
{
int total_len;
struct url_chain *c;
usbd_status err;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__));
c = &sc->sc_cdata.url_tx_chain[idx];
/* Copy the mbuf data into a contiguous buffer */
m_copydata(m, 0, m->m_pkthdr.len, c->url_buf);
c->url_mbuf = m;
total_len = m->m_pkthdr.len;
if (total_len < URL_MIN_FRAME_LEN) {
memset(c->url_buf + total_len, 0,
URL_MIN_FRAME_LEN - total_len);
total_len = URL_MIN_FRAME_LEN;
}
usbd_setup_xfer(c->url_xfer, sc->sc_pipe_tx, c, c->url_buf, total_len,
USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
URL_TX_TIMEOUT, url_txeof);
/* Transmit */
sc->sc_refcnt++;
err = usbd_transfer(c->url_xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (err != USBD_IN_PROGRESS) {
printf("%s: url_send error=%s\n", USBDEVNAME(sc->sc_dev),
usbd_errstr(err));
/* Stop the interface */
usb_add_task(sc->sc_udev, &sc->sc_stop_task,
USB_TASKQ_DRIVER);
return (EIO);
}
DPRINTF(("%s: %s: send %d bytes\n", USBDEVNAME(sc->sc_dev),
__func__, total_len));
sc->sc_cdata.url_tx_cnt++;
return (0);
}
Static void
url_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
struct url_chain *c = priv;
struct url_softc *sc = c->url_sc;
struct ifnet *ifp = GET_IFP(sc);
int s;
if (sc->sc_dying)
return;
s = splnet();
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
ifp->if_timer = 0;
ifp->if_flags &= ~IFF_OACTIVE;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
splx(s);
return;
}
ifp->if_oerrors++;
printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->sc_dev),
usbd_errstr(status));
if (status == USBD_STALLED) {
sc->sc_refcnt++;
usbd_clear_endpoint_stall_async(sc->sc_pipe_tx);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
}
splx(s);
return;
}
ifp->if_opackets++;
m_freem(c->url_mbuf);
c->url_mbuf = NULL;
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
url_start(ifp);
splx(s);
}
Static void
url_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct url_chain *c = priv;
struct url_softc *sc = c->url_sc;
struct ifnet *ifp = GET_IFP(sc);
struct mbuf *m;
u_int32_t total_len;
url_rxhdr_t rxhdr;
int s;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__));
if (sc->sc_dying)
return;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
sc->sc_rx_errs++;
if (usbd_ratecheck(&sc->sc_rx_notice)) {
printf("%s: %u usb errors on rx: %s\n",
USBDEVNAME(sc->sc_dev), sc->sc_rx_errs,
usbd_errstr(status));
sc->sc_rx_errs = 0;
}
if (status == USBD_STALLED) {
sc->sc_refcnt++;
usbd_clear_endpoint_stall_async(sc->sc_pipe_rx);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
}
goto done;
}
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
memcpy(mtod(c->url_mbuf, char *), c->url_buf, total_len);
if (total_len <= ETHER_CRC_LEN) {
ifp->if_ierrors++;
goto done;
}
memcpy(&rxhdr, c->url_buf + total_len - ETHER_CRC_LEN, sizeof(rxhdr));
DPRINTF(("%s: RX Status: %dbytes%s%s%s%s packets\n",
USBDEVNAME(sc->sc_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) {
ifp->if_ierrors++;
goto done;
}
ifp->if_ipackets++;
total_len -= ETHER_CRC_LEN;
m = c->url_mbuf;
m->m_pkthdr.len = m->m_len = total_len;
m->m_pkthdr.rcvif = ifp;
s = splnet();
if (url_newbuf(sc, c, NULL) == ENOBUFS) {
ifp->if_ierrors++;
goto done1;
}
#if NBPFILTER > 0
if (ifp->if_bpf)
BPF_MTAP(ifp, m);
#endif
DPRINTF(("%s: %s: deliver %d\n", USBDEVNAME(sc->sc_dev),
__func__, m->m_len));
IF_INPUT(ifp, m);
done1:
splx(s);
done:
/* Setup new transfer */
usbd_setup_xfer(xfer, sc->sc_pipe_rx, c, c->url_buf, URL_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, url_rxeof);
sc->sc_refcnt++;
usbd_transfer(xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
DPRINTF(("%s: %s: start rx\n", USBDEVNAME(sc->sc_dev), __func__));
}
#if 0
Static void url_intr()
{
}
#endif
Static int
url_ioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct url_softc *sc = ifp->if_softc;
int s, error = 0;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (EIO);
s = splnet();
error = ether_ioctl(ifp, cmd, data);
if (error == ENETRESET) {
if (ifp->if_flags & IFF_RUNNING)
url_setmulti(sc);
error = 0;
}
splx(s);
return (error);
}
Static void
url_watchdog(struct ifnet *ifp)
{
struct url_softc *sc = ifp->if_softc;
struct url_chain *c;
usbd_status stat;
int s;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
ifp->if_oerrors++;
printf("%s: watchdog timeout\n", USBDEVNAME(sc->sc_dev));
s = splusb();
c = &sc->sc_cdata.url_tx_chain[0];
usbd_get_xfer_status(c->url_xfer, NULL, NULL, NULL, &stat);
url_txeof(c->url_xfer, c, stat);
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
url_start(ifp);
splx(s);
}
Static void
url_stop_task(struct url_softc *sc)
{
url_stop(GET_IFP(sc), 1);
}
/* Stop the adapter and free any mbufs allocated to the RX and TX lists. */
Static void
url_stop(struct ifnet *ifp, int disable)
{
struct url_softc *sc = ifp->if_softc;
usbd_status err;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
ifp->if_timer = 0;
url_reset(sc);
usb_uncallout(sc->sc_stat_ch, url_tick, sc);
/* Stop transfers */
/* RX endpoint */
if (sc->sc_pipe_rx != NULL) {
err = usbd_abort_pipe(sc->sc_pipe_rx);
if (err)
printf("%s: abort rx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
err = usbd_close_pipe(sc->sc_pipe_rx);
if (err)
printf("%s: close rx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
sc->sc_pipe_rx = NULL;
}
/* TX endpoint */
if (sc->sc_pipe_tx != NULL) {
err = usbd_abort_pipe(sc->sc_pipe_tx);
if (err)
printf("%s: abort tx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
err = usbd_close_pipe(sc->sc_pipe_tx);
if (err)
printf("%s: close tx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
sc->sc_pipe_tx = NULL;
}
#if 0
/* XXX: Interrupt endpoint is not yet supported!! */
/* Interrupt endpoint */
if (sc->sc_pipe_intr != NULL) {
err = usbd_abort_pipe(sc->sc_pipe_intr);
if (err)
printf("%s: abort intr pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
err = usbd_close_pipe(sc->sc_pipe_intr);
if (err)
printf("%s: close intr pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
sc->sc_pipe_intr = NULL;
}
#endif
/* Free RX resources. */
for (i = 0; i < URL_RX_LIST_CNT; i++) {
if (sc->sc_cdata.url_rx_chain[i].url_mbuf != NULL) {
m_freem(sc->sc_cdata.url_rx_chain[i].url_mbuf);
sc->sc_cdata.url_rx_chain[i].url_mbuf = NULL;
}
if (sc->sc_cdata.url_rx_chain[i].url_xfer != NULL) {
usbd_free_xfer(sc->sc_cdata.url_rx_chain[i].url_xfer);
sc->sc_cdata.url_rx_chain[i].url_xfer = NULL;
}
}
/* Free TX resources. */
for (i = 0; i < URL_TX_LIST_CNT; i++) {
if (sc->sc_cdata.url_tx_chain[i].url_mbuf != NULL) {
m_freem(sc->sc_cdata.url_tx_chain[i].url_mbuf);
sc->sc_cdata.url_tx_chain[i].url_mbuf = NULL;
}
if (sc->sc_cdata.url_tx_chain[i].url_xfer != NULL) {
usbd_free_xfer(sc->sc_cdata.url_tx_chain[i].url_xfer);
sc->sc_cdata.url_tx_chain[i].url_xfer = NULL;
}
}
sc->sc_link = 0;
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}
/* Set media options */
Static int
url_ifmedia_change(struct ifnet *ifp)
{
struct url_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
int rc;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (0);
sc->sc_link = 0;
if ((rc = mii_mediachg(mii)) == ENXIO)
return 0;
return rc;
}
/* Report current media status. */
Static void
url_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct url_softc *sc = ifp->if_softc;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return;
ether_mediastatus(ifp, ifmr);
}
Static void
url_tick(void *xsc)
{
struct url_softc *sc = xsc;
if (sc == NULL)
return;
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),
__func__));
if (sc->sc_dying)
return;
/* Perform periodic stuff in process context */
usb_add_task(sc->sc_udev, &sc->sc_tick_task, USB_TASKQ_DRIVER);
}
Static void
url_tick_task(void *xsc)
{
struct url_softc *sc = xsc;
struct ifnet *ifp;
struct mii_data *mii;
int s;
if (sc == NULL)
return;
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),
__func__));
if (sc->sc_dying)
return;
ifp = GET_IFP(sc);
mii = GET_MII(sc);
if (mii == NULL)
return;
s = splnet();
mii_tick(mii);
if (!sc->sc_link) {
mii_pollstat(mii);
if (mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
DPRINTF(("%s: %s: got link\n",
USBDEVNAME(sc->sc_dev), __func__));
sc->sc_link++;
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
url_start(ifp);
}
}
usb_callout(sc->sc_stat_ch, hz, url_tick, sc);
splx(s);
}
/* Get exclusive access to the MII registers */
Static void
url_lock_mii(struct url_softc *sc)
{
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),
__func__));
sc->sc_refcnt++;
rw_enter(&sc->sc_mii_rwlock, RW_WRITER);
}
Static void
url_unlock_mii(struct url_softc *sc)
{
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),
__func__));
rw_exit(&sc->sc_mii_rwlock);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
}
Static int
url_int_miibus_readreg(device_ptr_t dev, int phy, int reg)
{
struct url_softc *sc;
u_int16_t val;
if (dev == NULL)
return (0);
sc = USBGETSOFTC(dev);
DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg));
if (sc->sc_dying) {
#ifdef DIAGNOSTIC
printf("%s: %s: dying\n", USBDEVNAME(sc->sc_dev),
__func__);
#endif
return (0);
}
/* XXX: one PHY only for the RTL8150 internal PHY */
if (phy != 0) {
DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
USBDEVNAME(sc->sc_dev), __func__, phy));
return (0);
}
url_lock_mii(sc);
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",
USBDEVNAME(sc->sc_dev), __func__, reg);
val = 0;
goto R_DONE;
break;
}
if (reg == URL_MSR)
val = url_csr_read_1(sc, reg);
else
val = url_csr_read_2(sc, reg);
R_DONE:
DPRINTFN(0xff, ("%s: %s: phy=%d reg=0x%04x => 0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg, val));
url_unlock_mii(sc);
return (val);
}
Static void
url_int_miibus_writereg(device_ptr_t dev, int phy, int reg, int data)
{
struct url_softc *sc;
if (dev == NULL)
return;
sc = USBGETSOFTC(dev);
DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x data=0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg, data));
if (sc->sc_dying) {
#ifdef DIAGNOSTIC
printf("%s: %s: dying\n", USBDEVNAME(sc->sc_dev),
__func__);
#endif
return;
}
/* XXX: one PHY only for the RTL8150 internal PHY */
if (phy != 0) {
DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
USBDEVNAME(sc->sc_dev), __func__, phy));
return;
}
url_lock_mii(sc);
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:
goto W_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",
USBDEVNAME(sc->sc_dev), __func__, reg);
goto W_DONE;
break;
}
if (reg == URL_MSR)
url_csr_write_1(sc, reg, data);
else
url_csr_write_2(sc, reg, data);
W_DONE:
url_unlock_mii(sc);
return;
}
Static void
url_miibus_statchg(device_ptr_t dev)
{
#ifdef URL_DEBUG
struct url_softc *sc;
if (dev == NULL)
return;
sc = USBGETSOFTC(dev);
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
#endif
/* Nothing to do */
}
#if 0
/*
* external PHYs support, but not test.
*/
Static int
url_ext_miibus_redreg(device_ptr_t dev, int phy, int reg)
{
struct url_softc *sc = USBGETSOFTC(dev);
u_int16_t val;
DPRINTF(("%s: %s: enter, phy=%d reg=0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg));
if (sc->sc_dying) {
#ifdef DIAGNOSTIC
printf("%s: %s: dying\n", USBDEVNAME(sc->sc_dev),
__func__);
#endif
return (0);
}
url_lock_mii(sc);
url_csr_write_1(sc, 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(sc, URL_PHYCNT,
(reg | URL_PHYCNT_PHYOWN) & ~URL_PHYCNT_RWCR);
for (i = 0; i < URL_TIMEOUT; i++) {
if ((url_csr_read_1(sc, URL_PHYCNT) & URL_PHYCNT_PHYOWN) == 0)
break;
}
if (i == URL_TIMEOUT) {
printf("%s: MII read timed out\n", USBDEVNAME(sc->sc_dev));
}
val = url_csr_read_2(sc, URL_PHYDAT);
DPRINTF(("%s: %s: phy=%d reg=0x%04x => 0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg, val));
url_unlock_mii(sc);
return (val);
}
Static void
url_ext_miibus_writereg(device_ptr_t dev, int phy, int reg, int data)
{
struct url_softc *sc = USBGETSOFTC(dev);
DPRINTF(("%s: %s: enter, phy=%d reg=0x%04x data=0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg, data));
if (sc->sc_dying) {
#ifdef DIAGNOSTIC
printf("%s: %s: dying\n", USBDEVNAME(sc->sc_dev),
__func__);
#endif
return;
}
url_lock_mii(sc);
url_csr_write_2(sc, URL_PHYDAT, data);
url_csr_write_1(sc, URL_PHYADD, phy);
url_csr_write_1(sc, URL_PHYCNT, reg | URL_PHYCNT_RWCR); /* Write */
for (i=0; i < URL_TIMEOUT; i++) {
if (url_csr_read_1(sc, URL_PHYCNT) & URL_PHYCNT_PHYOWN)
break;
}
if (i == URL_TIMEOUT) {
printf("%s: MII write timed out\n",
USBDEVNAME(sc->sc_dev));
}
url_unlock_mii(sc);
return;
}
#endif