NetBSD-5.0.2/sys/dev/usb/if_udav.c
/* $NetBSD: if_udav.c,v 1.24 2008/05/24 16:40:58 cube Exp $ */
/* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */
/*
* Copyright (c) 2003
* 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.
*
*/
/*
* DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY)
* The spec can be found at the following url.
* http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-F01-062202s.pdf
*/
/*
* TODO:
* Interrupt Endpoint support
* External PHYs
* powerhook() support?
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_udav.c,v 1.24 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/mutex.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/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/if_udavreg.h>
/* Function declarations */
USB_DECLARE_DRIVER(udav);
Static int udav_openpipes(struct udav_softc *);
Static int udav_rx_list_init(struct udav_softc *);
Static int udav_tx_list_init(struct udav_softc *);
Static int udav_newbuf(struct udav_softc *, struct udav_chain *, struct mbuf *);
Static void udav_start(struct ifnet *);
Static int udav_send(struct udav_softc *, struct mbuf *, int);
Static void udav_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void udav_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void udav_tick(void *);
Static void udav_tick_task(void *);
Static int udav_ioctl(struct ifnet *, u_long, void *);
Static void udav_stop_task(struct udav_softc *);
Static void udav_stop(struct ifnet *, int);
Static void udav_watchdog(struct ifnet *);
Static int udav_ifmedia_change(struct ifnet *);
Static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
Static void udav_lock_mii(struct udav_softc *);
Static void udav_unlock_mii(struct udav_softc *);
Static int udav_miibus_readreg(device_ptr_t, int, int);
Static void udav_miibus_writereg(device_ptr_t, int, int, int);
Static void udav_miibus_statchg(device_ptr_t);
Static int udav_init(struct ifnet *);
Static void udav_setmulti(struct udav_softc *);
Static void udav_reset(struct udav_softc *);
Static int udav_csr_read(struct udav_softc *, int, void *, int);
Static int udav_csr_write(struct udav_softc *, int, void *, int);
Static int udav_csr_read1(struct udav_softc *, int);
Static int udav_csr_write1(struct udav_softc *, int, unsigned char);
#if 0
Static int udav_mem_read(struct udav_softc *, int, void *, int);
Static int udav_mem_write(struct udav_softc *, int, void *, int);
Static int udav_mem_write1(struct udav_softc *, int, unsigned char);
#endif
/* Macros */
#ifdef UDAV_DEBUG
#define DPRINTF(x) if (udavdebug) logprintf x
#define DPRINTFN(n,x) if (udavdebug >= (n)) logprintf x
int udavdebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#define UDAV_SETBIT(sc, reg, x) \
udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x))
#define UDAV_CLRBIT(sc, reg, x) \
udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x))
static const struct udav_type {
struct usb_devno udav_dev;
u_int16_t udav_flags;
#define UDAV_EXT_PHY 0x0001
} udav_devs [] = {
/* Corega USB-TXC */
{{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC }, 0},
/* ShanTou ST268 USB NIC */
{{ USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268_USB_NIC }, 0},
/* ShanTou ADM8515 */
{{ USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515 }, 0},
#if 0
/* DAVICOM DM9601 Generic? */
/* XXX: The following ids was obtained from the data sheet. */
{{ 0x0a46, 0x9601 }, 0},
#endif
};
#define udav_lookup(v, p) ((const struct udav_type *)usb_lookup(udav_devs, v, p))
/* Probe */
USB_MATCH(udav)
{
USB_MATCH_START(udav, uaa);
return (udav_lookup(uaa->vendor, uaa->product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
}
/* Attach */
USB_ATTACH(udav)
{
USB_ATTACH_START(udav, 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, UDAV_CONFIG_NO, 1); /* idx 0 */
if (err) {
aprint_error_dev(self, "setting config no failed\n");
goto bad;
}
usb_init_task(&sc->sc_tick_task, udav_tick_task, sc);
mutex_init(&sc->sc_mii_lock, MUTEX_DEFAULT, IPL_NONE);
usb_init_task(&sc->sc_stop_task, (void (*)(void *)) udav_stop_task, sc);
/* get control interface */
err = usbd_device2interface_handle(dev, UDAV_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 = udav_lookup(uaa->vendor, uaa->product)->udav_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 */
udav_reset(sc);
/* Get Ethernet Address */
err = udav_csr_read(sc, UDAV_PAR, (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 = udav_start;
ifp->if_ioctl = udav_ioctl;
ifp->if_watchdog = udav_watchdog;
ifp->if_init = udav_init;
ifp->if_stop = udav_stop;
IFQ_SET_READY(&ifp->if_snd);
/*
* Do ifmedia setup.
*/
mii = &sc->sc_mii;
mii->mii_ifp = ifp;
mii->mii_readreg = udav_miibus_readreg;
mii->mii_writereg = udav_miibus_writereg;
mii->mii_statchg = udav_miibus_statchg;
mii->mii_flags = MIIF_AUTOTSLEEP;
sc->sc_ec.ec_mii = mii;
ifmedia_init(&mii->mii_media, 0,
udav_ifmedia_change, udav_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(udav)
{
USB_DETACH_START(udav, 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, udav_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)
udav_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);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
mutex_destroy(&sc->sc_mii_lock);
return (0);
}
#if 0
/* read memory */
Static int
udav_mem_read(struct udav_softc *sc, 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);
offset &= 0xffff;
len &= 0xff;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_READ;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
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: %s: read failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev), __func__, offset, err));
}
return (err);
}
/* write memory */
Static int
udav_mem_write(struct udav_softc *sc, 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);
offset &= 0xffff;
len &= 0xff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_WRITE;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
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: %s: write failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev), __func__, offset, err));
}
return (err);
}
/* write memory */
Static int
udav_mem_write1(struct udav_softc *sc, int offset, unsigned char ch)
{
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);
offset &= 0xffff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_WRITE1;
USETW(req.wValue, ch);
USETW(req.wIndex, offset);
USETW(req.wLength, 0x0000);
sc->sc_refcnt++;
err = usbd_do_request(sc->sc_udev, &req, NULL);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (err) {
DPRINTF(("%s: %s: write failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev), __func__, offset, err));
}
return (err);
}
#endif
/* read register(s) */
Static int
udav_csr_read(struct udav_softc *sc, 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);
offset &= 0xff;
len &= 0xff;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_REG_READ;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
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: %s: read failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev), __func__, offset, err));
}
return (err);
}
/* write register(s) */
Static int
udav_csr_write(struct udav_softc *sc, 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);
offset &= 0xff;
len &= 0xff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_REG_WRITE;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, offset);
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: %s: write failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev), __func__, offset, err));
}
return (err);
}
Static int
udav_csr_read1(struct udav_softc *sc, int offset)
{
u_int8_t val = 0;
if (sc == NULL)
return (0);
DPRINTFN(0x200,
("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return (0);
return (udav_csr_read(sc, offset, &val, 1) ? 0 : val);
}
/* write a register */
Static int
udav_csr_write1(struct udav_softc *sc, int offset, unsigned char ch)
{
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);
offset &= 0xff;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_REG_WRITE1;
USETW(req.wValue, ch);
USETW(req.wIndex, offset);
USETW(req.wLength, 0x0000);
sc->sc_refcnt++;
err = usbd_do_request(sc->sc_udev, &req, NULL);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (err) {
DPRINTF(("%s: %s: write failed. off=%04x, err=%d\n",
USBDEVNAME(sc->sc_dev), __func__, offset, err));
}
return (err);
}
Static int
udav_init(struct ifnet *ifp)
{
struct udav_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
uint8_t eaddr[ETHER_ADDR_LEN];
int 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 */
udav_stop(ifp, 1);
memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr));
udav_csr_write(sc, UDAV_PAR, eaddr, ETHER_ADDR_LEN);
/* Initialize network control register */
/* Disable loopback */
UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1);
/* Initialize RX control register */
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC);
/* If we want promiscuous mode, accept all physical frames. */
if (ifp->if_flags & IFF_PROMISC)
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
else
UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
/* Initialize transmit ring */
if (udav_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", USBDEVNAME(sc->sc_dev));
splx(s);
return (EIO);
}
/* Initialize receive ring */
if (udav_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", USBDEVNAME(sc->sc_dev));
splx(s);
return (EIO);
}
/* Load the multicast filter */
udav_setmulti(sc);
/* Enable RX */
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN);
/* clear POWER_DOWN state of internal PHY */
UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0);
UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0);
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 (udav_openpipes(sc)) {
splx(s);
return (EIO);
}
}
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
usb_callout(sc->sc_stat_ch, hz, udav_tick, sc);
out:
splx(s);
return rc;
}
Static void
udav_reset(struct udav_softc *sc)
{
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
if (sc->sc_dying)
return;
/* Select PHY */
#if 1
/*
* XXX: force select internal phy.
* external phy routines are not tested.
*/
UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
#else
if (sc->sc_flags & UDAV_EXT_PHY) {
UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
} else {
UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
}
#endif
UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST);
for (i = 0; i < UDAV_TX_TIMEOUT; i++) {
if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST))
break;
delay(10); /* XXX */
}
delay(10000); /* XXX */
}
int
udav_activate(device_ptr_t self, enum devact act)
{
struct udav_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 UDAV_BITS 6
#define UDAV_CALCHASH(addr) \
(ether_crc32_le((addr), ETHER_ADDR_LEN) & ((1 << UDAV_BITS) - 1))
Static void
udav_setmulti(struct udav_softc *sc)
{
struct ifnet *ifp;
struct ether_multi *enm;
struct ether_multistep step;
u_int8_t hashes[8];
int h = 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) {
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
return;
} else if (ifp->if_flags & IFF_ALLMULTI) {
allmulti:
ifp->if_flags |= IFF_ALLMULTI;
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_PRMSC);
return;
}
/* first, zot all the existing hash bits */
memset(hashes, 0x00, sizeof(hashes));
hashes[7] |= 0x80; /* broadcast address */
udav_csr_write(sc, UDAV_MAR, hashes, sizeof(hashes));
/* 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 = UDAV_CALCHASH(enm->enm_addrlo);
hashes[h>>3] |= 1 << (h & 0x7);
ETHER_NEXT_MULTI(step, enm);
}
/* disable all multicast */
ifp->if_flags &= ~IFF_ALLMULTI;
UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
/* write hash value to the register */
udav_csr_write(sc, UDAV_MAR, hashes, sizeof(hashes));
}
Static int
udav_openpipes(struct udav_softc *sc)
{
struct udav_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.udav_ibuf, UDAV_INTR_PKGLEN,
udav_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 < UDAV_RX_LIST_CNT; i++) {
c = &sc->sc_cdata.udav_rx_chain[i];
usbd_setup_xfer(c->udav_xfer, sc->sc_pipe_rx,
c, c->udav_buf, UDAV_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, udav_rxeof);
(void)usbd_transfer(c->udav_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
udav_newbuf(struct udav_softc *sc, struct udav_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->udav_mbuf = m_new;
return (0);
}
Static int
udav_rx_list_init(struct udav_softc *sc)
{
struct udav_cdata *cd;
struct udav_chain *c;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
cd = &sc->sc_cdata;
for (i = 0; i < UDAV_RX_LIST_CNT; i++) {
c = &cd->udav_rx_chain[i];
c->udav_sc = sc;
c->udav_idx = i;
if (udav_newbuf(sc, c, NULL) == ENOBUFS)
return (ENOBUFS);
if (c->udav_xfer == NULL) {
c->udav_xfer = usbd_alloc_xfer(sc->sc_udev);
if (c->udav_xfer == NULL)
return (ENOBUFS);
c->udav_buf = usbd_alloc_buffer(c->udav_xfer, UDAV_BUFSZ);
if (c->udav_buf == NULL) {
usbd_free_xfer(c->udav_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static int
udav_tx_list_init(struct udav_softc *sc)
{
struct udav_cdata *cd;
struct udav_chain *c;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
cd = &sc->sc_cdata;
for (i = 0; i < UDAV_TX_LIST_CNT; i++) {
c = &cd->udav_tx_chain[i];
c->udav_sc = sc;
c->udav_idx = i;
c->udav_mbuf = NULL;
if (c->udav_xfer == NULL) {
c->udav_xfer = usbd_alloc_xfer(sc->sc_udev);
if (c->udav_xfer == NULL)
return (ENOBUFS);
c->udav_buf = usbd_alloc_buffer(c->udav_xfer, UDAV_BUFSZ);
if (c->udav_buf == NULL) {
usbd_free_xfer(c->udav_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static void
udav_start(struct ifnet *ifp)
{
struct udav_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 (udav_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
udav_send(struct udav_softc *sc, struct mbuf *m, int idx)
{
int total_len;
struct udav_chain *c;
usbd_status err;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__));
c = &sc->sc_cdata.udav_tx_chain[idx];
/* Copy the mbuf data into a contiguous buffer */
/* first 2 bytes are packet length */
m_copydata(m, 0, m->m_pkthdr.len, c->udav_buf + 2);
c->udav_mbuf = m;
total_len = m->m_pkthdr.len;
if (total_len < UDAV_MIN_FRAME_LEN) {
memset(c->udav_buf + 2 + total_len, 0,
UDAV_MIN_FRAME_LEN - total_len);
total_len = UDAV_MIN_FRAME_LEN;
}
/* Frame length is specified in the first 2bytes of the buffer */
c->udav_buf[0] = (u_int8_t)total_len;
c->udav_buf[1] = (u_int8_t)(total_len >> 8);
total_len += 2;
usbd_setup_xfer(c->udav_xfer, sc->sc_pipe_tx, c, c->udav_buf, total_len,
USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
UDAV_TX_TIMEOUT, udav_txeof);
/* Transmit */
sc->sc_refcnt++;
err = usbd_transfer(c->udav_xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (err != USBD_IN_PROGRESS) {
printf("%s: udav_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.udav_tx_cnt++;
return (0);
}
Static void
udav_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
struct udav_chain *c = priv;
struct udav_softc *sc = c->udav_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->udav_mbuf);
c->udav_mbuf = NULL;
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
udav_start(ifp);
splx(s);
}
Static void
udav_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct udav_chain *c = priv;
struct udav_softc *sc = c->udav_sc;
struct ifnet *ifp = GET_IFP(sc);
struct mbuf *m;
u_int32_t total_len;
u_int8_t *pktstat;
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);
/* copy data to mbuf */
m = c->udav_mbuf;
memcpy(mtod(m, char *), c->udav_buf, total_len);
/* first byte in received data */
pktstat = mtod(m, u_int8_t *);
m_adj(m, sizeof(u_int8_t));
DPRINTF(("%s: RX Status: 0x%02x\n", USBDEVNAME(sc->sc_dev),
*pktstat));
total_len = UGETW(mtod(m, u_int8_t *));
m_adj(m, sizeof(u_int16_t));
if (*pktstat & UDAV_RSR_LCS) {
ifp->if_collisions++;
goto done;
}
if (total_len < sizeof(struct ether_header) ||
*pktstat & UDAV_RSR_ERR) {
ifp->if_ierrors++;
goto done;
}
ifp->if_ipackets++;
total_len -= ETHER_CRC_LEN;
m->m_pkthdr.len = m->m_len = total_len;
m->m_pkthdr.rcvif = ifp;
s = splnet();
if (udav_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->udav_buf, UDAV_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, udav_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 udav_intr()
{
}
#endif
Static int
udav_ioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct udav_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)
udav_setmulti(sc);
error = 0;
}
splx(s);
return (error);
}
Static void
udav_watchdog(struct ifnet *ifp)
{
struct udav_softc *sc = ifp->if_softc;
struct udav_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.udav_tx_chain[0];
usbd_get_xfer_status(c->udav_xfer, NULL, NULL, NULL, &stat);
udav_txeof(c->udav_xfer, c, stat);
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
udav_start(ifp);
splx(s);
}
Static void
udav_stop_task(struct udav_softc *sc)
{
udav_stop(GET_IFP(sc), 1);
}
/* Stop the adapter and free any mbufs allocated to the RX and TX lists. */
Static void
udav_stop(struct ifnet *ifp, int disable)
{
struct udav_softc *sc = ifp->if_softc;
usbd_status err;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
ifp->if_timer = 0;
udav_reset(sc);
usb_uncallout(sc->sc_stat_ch, udav_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 < UDAV_RX_LIST_CNT; i++) {
if (sc->sc_cdata.udav_rx_chain[i].udav_mbuf != NULL) {
m_freem(sc->sc_cdata.udav_rx_chain[i].udav_mbuf);
sc->sc_cdata.udav_rx_chain[i].udav_mbuf = NULL;
}
if (sc->sc_cdata.udav_rx_chain[i].udav_xfer != NULL) {
usbd_free_xfer(sc->sc_cdata.udav_rx_chain[i].udav_xfer);
sc->sc_cdata.udav_rx_chain[i].udav_xfer = NULL;
}
}
/* Free TX resources. */
for (i = 0; i < UDAV_TX_LIST_CNT; i++) {
if (sc->sc_cdata.udav_tx_chain[i].udav_mbuf != NULL) {
m_freem(sc->sc_cdata.udav_tx_chain[i].udav_mbuf);
sc->sc_cdata.udav_tx_chain[i].udav_mbuf = NULL;
}
if (sc->sc_cdata.udav_tx_chain[i].udav_xfer != NULL) {
usbd_free_xfer(sc->sc_cdata.udav_tx_chain[i].udav_xfer);
sc->sc_cdata.udav_tx_chain[i].udav_xfer = NULL;
}
}
sc->sc_link = 0;
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}
/* Set media options */
Static int
udav_ifmedia_change(struct ifnet *ifp)
{
struct udav_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
udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct udav_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
udav_tick(void *xsc)
{
struct udav_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
udav_tick_task(void *xsc)
{
struct udav_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)
udav_start(ifp);
}
}
usb_callout(sc->sc_stat_ch, hz, udav_tick, sc);
splx(s);
}
/* Get exclusive access to the MII registers */
Static void
udav_lock_mii(struct udav_softc *sc)
{
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),
__func__));
sc->sc_refcnt++;
mutex_enter(&sc->sc_mii_lock);
}
Static void
udav_unlock_mii(struct udav_softc *sc)
{
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),
__func__));
mutex_exit(&sc->sc_mii_lock);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
}
Static int
udav_miibus_readreg(device_ptr_t dev, int phy, int reg)
{
struct udav_softc *sc;
u_int8_t val[2];
u_int16_t data16;
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 internal PHY */
if (phy != 0) {
DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
USBDEVNAME(sc->sc_dev), __func__, phy));
return (0);
}
udav_lock_mii(sc);
/* select internal PHY and set PHY register address */
udav_csr_write1(sc, UDAV_EPAR,
UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
/* select PHY operation and start read command */
udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR);
/* XXX: should be wait? */
/* end read command */
UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR);
/* retrieve the result from data registers */
udav_csr_read(sc, UDAV_EPDRL, val, 2);
udav_unlock_mii(sc);
data16 = val[0] | (val[1] << 8);
DPRINTFN(0xff, ("%s: %s: phy=%d reg=0x%04x => 0x%04x\n",
USBDEVNAME(sc->sc_dev), __func__, phy, reg, data16));
return (data16);
}
Static void
udav_miibus_writereg(device_ptr_t dev, int phy, int reg, int data)
{
struct udav_softc *sc;
u_int8_t val[2];
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 internal PHY */
if (phy != 0) {
DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
USBDEVNAME(sc->sc_dev), __func__, phy));
return;
}
udav_lock_mii(sc);
/* select internal PHY and set PHY register address */
udav_csr_write1(sc, UDAV_EPAR,
UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
/* put the value to the data registers */
val[0] = data & 0xff;
val[1] = (data >> 8) & 0xff;
udav_csr_write(sc, UDAV_EPDRL, val, 2);
/* select PHY operation and start write command */
udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW);
/* XXX: should be wait? */
/* end write command */
UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
udav_unlock_mii(sc);
return;
}
Static void
udav_miibus_statchg(device_ptr_t dev)
{
#ifdef UDAV_DEBUG
struct udav_softc *sc;
if (dev == NULL)
return;
sc = USBGETSOFTC(dev);
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__));
#endif
/* Nothing to do */
}