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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/ixgb/@/dev/usb/net/if_udav.c |
/* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */
/* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */
/* $FreeBSD: release/9.1.0/sys/dev/usb/net/if_udav.c 235000 2012-05-04 15:05:30Z hselasky $ */
/*-
* 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-P01-930914.pdf
*/
/*
* TODO:
* Interrupt Endpoint support
* External PHYs
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/usb/net/if_udav.c 235000 2012-05-04 15:05:30Z hselasky $");
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR udav_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/net/usb_ethernet.h>
#include <dev/usb/net/if_udavreg.h>
/* prototypes */
static device_probe_t udav_probe;
static device_attach_t udav_attach;
static device_detach_t udav_detach;
static usb_callback_t udav_bulk_write_callback;
static usb_callback_t udav_bulk_read_callback;
static usb_callback_t udav_intr_callback;
static uether_fn_t udav_attach_post;
static uether_fn_t udav_init;
static uether_fn_t udav_stop;
static uether_fn_t udav_start;
static uether_fn_t udav_tick;
static uether_fn_t udav_setmulti;
static uether_fn_t udav_setpromisc;
static int udav_csr_read(struct udav_softc *, uint16_t, void *, int);
static int udav_csr_write(struct udav_softc *, uint16_t, void *, int);
static uint8_t udav_csr_read1(struct udav_softc *, uint16_t);
static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t);
static void udav_reset(struct udav_softc *);
static int udav_ifmedia_upd(struct ifnet *);
static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
static miibus_readreg_t udav_miibus_readreg;
static miibus_writereg_t udav_miibus_writereg;
static miibus_statchg_t udav_miibus_statchg;
static const struct usb_config udav_config[UDAV_N_TRANSFER] = {
[UDAV_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = (MCLBYTES + 2),
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = udav_bulk_write_callback,
.timeout = 10000, /* 10 seconds */
},
[UDAV_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = (MCLBYTES + 3),
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = udav_bulk_read_callback,
.timeout = 0, /* no timeout */
},
[UDAV_INTR_DT_RD] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = 0, /* use wMaxPacketSize */
.callback = udav_intr_callback,
},
};
static device_method_t udav_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, udav_probe),
DEVMETHOD(device_attach, udav_attach),
DEVMETHOD(device_detach, udav_detach),
/* MII interface */
DEVMETHOD(miibus_readreg, udav_miibus_readreg),
DEVMETHOD(miibus_writereg, udav_miibus_writereg),
DEVMETHOD(miibus_statchg, udav_miibus_statchg),
DEVMETHOD_END
};
static driver_t udav_driver = {
.name = "udav",
.methods = udav_methods,
.size = sizeof(struct udav_softc),
};
static devclass_t udav_devclass;
DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0);
DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0);
MODULE_DEPEND(udav, uether, 1, 1, 1);
MODULE_DEPEND(udav, usb, 1, 1, 1);
MODULE_DEPEND(udav, ether, 1, 1, 1);
MODULE_DEPEND(udav, miibus, 1, 1, 1);
MODULE_VERSION(udav, 1);
static const struct usb_ether_methods udav_ue_methods = {
.ue_attach_post = udav_attach_post,
.ue_start = udav_start,
.ue_init = udav_init,
.ue_stop = udav_stop,
.ue_tick = udav_tick,
.ue_setmulti = udav_setmulti,
.ue_setpromisc = udav_setpromisc,
.ue_mii_upd = udav_ifmedia_upd,
.ue_mii_sts = udav_ifmedia_status,
};
#ifdef USB_DEBUG
static int udav_debug = 0;
SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav");
SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0,
"Debug level");
#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_USB_HOST_ID udav_devs[] = {
/* ShanTou DM9601 USB NIC */
{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)},
/* ShanTou ST268 USB NIC */
{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)},
/* Corega USB-TXC */
{USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)},
/* ShanTou AMD8515 USB NIC */
{USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)},
/* Kontron AG USB Ethernet */
{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)},
{USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)},
};
static void
udav_attach_post(struct usb_ether *ue)
{
struct udav_softc *sc = uether_getsc(ue);
/* reset the adapter */
udav_reset(sc);
/* Get Ethernet Address */
udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN);
}
static int
udav_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX)
return (ENXIO);
if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX)
return (ENXIO);
return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa));
}
static int
udav_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct udav_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
uint8_t iface_index;
int error;
sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
iface_index = UDAV_IFACE_INDEX;
error = usbd_transfer_setup(uaa->device, &iface_index,
sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx);
if (error) {
device_printf(dev, "allocating USB transfers failed\n");
goto detach;
}
ue->ue_sc = sc;
ue->ue_dev = dev;
ue->ue_udev = uaa->device;
ue->ue_mtx = &sc->sc_mtx;
ue->ue_methods = &udav_ue_methods;
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "could not attach interface\n");
goto detach;
}
return (0); /* success */
detach:
udav_detach(dev);
return (ENXIO); /* failure */
}
static int
udav_detach(device_t dev)
{
struct udav_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER);
uether_ifdetach(ue);
mtx_destroy(&sc->sc_mtx);
return (0);
}
#if 0
static int
udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf,
int len)
{
struct usb_device_request req;
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);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static int
udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf,
int len)
{
struct usb_device_request req;
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);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static int
udav_mem_write1(struct udav_softc *sc, uint16_t offset,
uint8_t ch)
{
struct usb_device_request req;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = UDAV_REQ_MEM_WRITE1;
USETW(req.wValue, ch);
USETW(req.wIndex, offset);
USETW(req.wLength, 0x0000);
return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
}
#endif
static int
udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len)
{
struct usb_device_request req;
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);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static int
udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len)
{
struct usb_device_request req;
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);
return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
}
static uint8_t
udav_csr_read1(struct udav_softc *sc, uint16_t offset)
{
uint8_t val;
udav_csr_read(sc, offset, &val, 1);
return (val);
}
static int
udav_csr_write1(struct udav_softc *sc, uint16_t offset,
uint8_t ch)
{
struct usb_device_request req;
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);
return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
}
static void
udav_init(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
UDAV_LOCK_ASSERT(sc, MA_OWNED);
/*
* Cancel pending I/O
*/
udav_stop(ue);
/* set MAC address */
udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), 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);
/* load multicast filter and update promiscious mode bit */
udav_setpromisc(ue);
/* 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);
usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
udav_start(ue);
}
static void
udav_reset(struct udav_softc *sc)
{
int i;
/* 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;
if (uether_pause(&sc->sc_ue, hz / 100))
break;
}
uether_pause(&sc->sc_ue, hz / 100);
}
#define UDAV_BITS 6
static void
udav_setmulti(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct ifmultiaddr *ifma;
uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
int h = 0;
UDAV_LOCK_ASSERT(sc, MA_OWNED);
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
return;
}
/* first, zot all the existing hash bits */
memset(hashtbl, 0x00, sizeof(hashtbl));
hashtbl[7] |= 0x80; /* broadcast address */
udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
/* now program new ones */
if_maddr_rlock(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
{
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
hashtbl[h / 8] |= 1 << (h % 8);
}
if_maddr_runlock(ifp);
/* disable all multicast */
UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
/* write hash value to the register */
udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
}
static void
udav_setpromisc(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
uint8_t rxmode;
rxmode = udav_csr_read1(sc, UDAV_RCR);
rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC);
if (ifp->if_flags & IFF_PROMISC)
rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC;
else if (ifp->if_flags & IFF_ALLMULTI)
rxmode |= UDAV_RCR_ALL;
/* write new mode bits */
udav_csr_write1(sc, UDAV_RCR, rxmode);
}
static void
udav_start(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
/*
* start the USB transfers, if not already started:
*/
usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]);
usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]);
usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]);
}
static void
udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct udav_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct usb_page_cache *pc;
struct mbuf *m;
int extra_len;
int temp_len;
uint8_t buf[2];
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(11, "transfer complete\n");
ifp->if_opackets++;
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) {
/*
* don't send anything if there is no link !
*/
return;
}
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
return;
if (m->m_pkthdr.len > MCLBYTES)
m->m_pkthdr.len = MCLBYTES;
if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) {
extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len;
} else {
extra_len = 0;
}
temp_len = (m->m_pkthdr.len + extra_len);
/*
* the frame length is specified in the first 2 bytes of the
* buffer
*/
buf[0] = (uint8_t)(temp_len);
buf[1] = (uint8_t)(temp_len >> 8);
temp_len += 2;
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, buf, 2);
usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
if (extra_len)
usbd_frame_zero(pc, temp_len - extra_len, extra_len);
/*
* if there's a BPF listener, bounce a copy
* of this frame to him:
*/
BPF_MTAP(ifp, m);
m_freem(m);
usbd_xfer_set_frame_len(xfer, 0, temp_len);
usbd_transfer_submit(xfer);
return;
default: /* Error */
DPRINTFN(11, "transfer error, %s\n",
usbd_errstr(error));
ifp->if_oerrors++;
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct udav_softc *sc = usbd_xfer_softc(xfer);
struct usb_ether *ue = &sc->sc_ue;
struct ifnet *ifp = uether_getifp(ue);
struct usb_page_cache *pc;
struct udav_rxpkt stat;
int len;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) {
ifp->if_ierrors++;
goto tr_setup;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &stat, sizeof(stat));
actlen -= sizeof(stat);
len = min(actlen, le16toh(stat.pktlen));
len -= ETHER_CRC_LEN;
if (stat.rxstat & UDAV_RSR_LCS) {
ifp->if_collisions++;
goto tr_setup;
}
if (stat.rxstat & UDAV_RSR_ERR) {
ifp->if_ierrors++;
goto tr_setup;
}
uether_rxbuf(ue, pc, sizeof(stat), len);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
uether_rxflush(ue);
return;
default: /* Error */
DPRINTF("bulk read error, %s\n",
usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
udav_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
udav_stop(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
UDAV_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
sc->sc_flags &= ~UDAV_FLAG_LINK;
/*
* stop all the transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]);
usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]);
usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]);
udav_reset(sc);
}
static int
udav_ifmedia_upd(struct ifnet *ifp)
{
struct udav_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
struct mii_softc *miisc;
UDAV_LOCK_ASSERT(sc, MA_OWNED);
sc->sc_flags &= ~UDAV_FLAG_LINK;
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
PHY_RESET(miisc);
mii_mediachg(mii);
return (0);
}
static void
udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct udav_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
UDAV_LOCK(sc);
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
UDAV_UNLOCK(sc);
}
static void
udav_tick(struct usb_ether *ue)
{
struct udav_softc *sc = ue->ue_sc;
struct mii_data *mii = GET_MII(sc);
UDAV_LOCK_ASSERT(sc, MA_OWNED);
mii_tick(mii);
if ((sc->sc_flags & UDAV_FLAG_LINK) == 0
&& mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
sc->sc_flags |= UDAV_FLAG_LINK;
udav_start(ue);
}
}
static int
udav_miibus_readreg(device_t dev, int phy, int reg)
{
struct udav_softc *sc = device_get_softc(dev);
uint16_t data16;
uint8_t val[2];
int locked;
/* XXX: one PHY only for the internal PHY */
if (phy != 0)
return (0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
UDAV_LOCK(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 we 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);
data16 = (val[0] | (val[1] << 8));
DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n",
phy, reg, data16);
if (!locked)
UDAV_UNLOCK(sc);
return (data16);
}
static int
udav_miibus_writereg(device_t dev, int phy, int reg, int data)
{
struct udav_softc *sc = device_get_softc(dev);
uint8_t val[2];
int locked;
/* XXX: one PHY only for the internal PHY */
if (phy != 0)
return (0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
UDAV_LOCK(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 we wait? */
/* end write command */
UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
if (!locked)
UDAV_UNLOCK(sc);
return (0);
}
static void
udav_miibus_statchg(device_t dev)
{
/* nothing to do */
}