NetBSD-5.0.2/sys/dev/usb/if_axe.c
/* $NetBSD: if_axe.c,v 1.25 2008/05/24 16:40:58 cube Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000-2003
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. 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 Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
* 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.
*/
/*
* ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
* LinkSys USB200M and various other adapters.
*
* Manuals available from:
* http://www.asix.com.tw/datasheet/mac/Ax88172.PDF
* (also http://people.freebsd.org/~wpaul/ASIX/Ax88172.PDF)
* Note: you need the manual for the AX88170 chip (USB 1.x ethernet
* controller) to find the definitions for the RX control register.
* http://www.asix.com.tw/datasheet/mac/Ax88170.PDF
*
* Written by Bill Paul <wpaul@windriver.com>
* Senior Engineer
* Wind River Systems
*/
/*
* The AX88172 provides USB ethernet supports at 10 and 100Mbps.
* It uses an external PHY (reference designs use a RealTek chip),
* and has a 64-bit multicast hash filter. There is some information
* missing from the manual which one needs to know in order to make
* the chip function:
*
* - You must set bit 7 in the RX control register, otherwise the
* chip won't receive any packets.
* - You must initialize all 3 IPG registers, or you won't be able
* to send any packets.
*
* Note that this device appears to only support loading the station
* address via autload from the EEPROM (i.e. there's no way to manaully
* set it).
*
* (Adam Weinberger wanted me to name this driver if_gir.c.)
*/
/*
* Ported to OpenBSD 3/28/2004 by Greg Taleck <taleck@oz.net>
* with bits and pieces from the aue and url drivers.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.25 2008/05/24 16:40:58 cube Exp $");
#if defined(__NetBSD__)
#include "opt_inet.h"
#include "rnd.h"
#endif
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sockio.h>
#include <sys/mutex.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#if defined(__OpenBSD__)
#include <sys/proc.h>
#endif
#include <sys/socket.h>
#include <sys/device.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <net/if.h>
#if defined(__NetBSD__)
#include <net/if_arp.h>
#endif
#include <net/if_dl.h>
#include <net/if_media.h>
#define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m))
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#if defined(__NetBSD__)
#include <net/if_ether.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#endif /* defined(__NetBSD__) */
#if defined(__OpenBSD__)
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#endif /* defined(__OpenBSD__) */
#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_axereg.h>
#ifdef AXE_DEBUG
#define DPRINTF(x) do { if (axedebug) logprintf x; } while (0)
#define DPRINTFN(n,x) do { if (axedebug >= (n)) logprintf x; } while (0)
int axedebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Various supported device vendors/products.
*/
Static const struct axe_type axe_devs[] = {
{ { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172}, 0 },
{ { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX }, 0},
{ { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, 0 },
{ { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M}, 0 },
{ { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX}, 0 },
{ { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120}, 0 },
{ { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029}, 0 },
{ { USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL}, 0 },
};
#define axe_lookup(v, p) ((const struct axe_type *)usb_lookup(axe_devs, v, p))
USB_DECLARE_DRIVER(axe);
Static int axe_tx_list_init(struct axe_softc *);
Static int axe_rx_list_init(struct axe_softc *);
Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *);
Static int axe_encap(struct axe_softc *, struct mbuf *, int);
Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void axe_tick(void *);
Static void axe_tick_task(void *);
#if 0
Static void axe_rxstart(struct ifnet *);
#endif
Static void axe_start(struct ifnet *);
Static int axe_ioctl(struct ifnet *, u_long, void *);
Static void axe_init(void *);
Static void axe_stop(struct axe_softc *);
Static void axe_watchdog(struct ifnet *);
Static int axe_miibus_readreg(device_ptr_t, int, int);
Static void axe_miibus_writereg(device_ptr_t, int, int, int);
Static void axe_miibus_statchg(device_ptr_t);
Static int axe_cmd(struct axe_softc *, int, int, int, void *);
Static void axe_reset(struct axe_softc *sc);
Static void axe_setmulti(struct axe_softc *);
Static void axe_lock_mii(struct axe_softc *sc);
Static void axe_unlock_mii(struct axe_softc *sc);
/* Get exclusive access to the MII registers */
Static void
axe_lock_mii(struct axe_softc *sc)
{
sc->axe_refcnt++;
mutex_enter(&sc->axe_mii_lock);
}
Static void
axe_unlock_mii(struct axe_softc *sc)
{
mutex_exit(&sc->axe_mii_lock);
if (--sc->axe_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->axe_dev));
}
Static int
axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf)
{
usb_device_request_t req;
usbd_status err;
KASSERT(mutex_owned(&sc->axe_mii_lock));
if (sc->axe_dying)
return(0);
if (AXE_CMD_DIR(cmd))
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
else
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = AXE_CMD_CMD(cmd);
USETW(req.wValue, val);
USETW(req.wIndex, index);
USETW(req.wLength, AXE_CMD_LEN(cmd));
err = usbd_do_request(sc->axe_udev, &req, buf);
if (err)
return(-1);
return(0);
}
Static int
axe_miibus_readreg(device_ptr_t dev, int phy, int reg)
{
struct axe_softc *sc = USBGETSOFTC(dev);
usbd_status err;
u_int16_t val;
if (sc->axe_dying) {
DPRINTF(("axe: dying\n"));
return(0);
}
#ifdef notdef
/*
* The chip tells us the MII address of any supported
* PHYs attached to the chip, so only read from those.
*/
if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0])
return (0);
if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1])
return (0);
#endif
if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy)
return (0);
val = 0;
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val);
axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
axe_unlock_mii(sc);
if (err) {
aprint_error_dev(sc->axe_dev, "read PHY failed\n");
return(-1);
}
if (val)
sc->axe_phyaddrs[0] = phy;
return (le16toh(val));
}
Static void
axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int aval)
{
struct axe_softc *sc = USBGETSOFTC(dev);
usbd_status err;
u_int16_t val;
if (sc->axe_dying)
return;
val = htole16(aval);
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val);
axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
axe_unlock_mii(sc);
if (err) {
aprint_error_dev(sc->axe_dev, "write PHY failed\n");
return;
}
}
Static void
axe_miibus_statchg(device_ptr_t dev)
{
struct axe_softc *sc = USBGETSOFTC(dev);
struct mii_data *mii = GET_MII(sc);
int val, err;
if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
val = AXE_MEDIA_FULL_DUPLEX;
else
val = 0;
DPRINTF(("axe_miibus_statchg: val=0x%x\n", val));
axe_lock_mii(sc);
err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL);
axe_unlock_mii(sc);
if (err) {
aprint_error_dev(sc->axe_dev, "media change failed\n");
return;
}
}
Static void
axe_setmulti(struct axe_softc *sc)
{
struct ifnet *ifp;
struct ether_multi *enm;
struct ether_multistep step;
u_int32_t h = 0;
u_int16_t rxmode;
u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
if (sc->axe_dying)
return;
ifp = GET_IFP(sc);
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode);
rxmode = le16toh(rxmode);
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
allmulti:
rxmode |= AXE_RXCMD_ALLMULTI;
axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
return;
} else
rxmode &= ~AXE_RXCMD_ALLMULTI;
/* now program new ones */
#if defined(__NetBSD__)
ETHER_FIRST_MULTI(step, &sc->axe_ec, enm);
#else
ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
#endif
while (enm != NULL) {
if (memcmp(enm->enm_addrlo, enm->enm_addrhi,
ETHER_ADDR_LEN) != 0)
goto allmulti;
h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26;
hashtbl[h / 8] |= 1 << (h % 8);
ETHER_NEXT_MULTI(step, enm);
}
ifp->if_flags &= ~IFF_ALLMULTI;
axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl);
axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
axe_unlock_mii(sc);
return;
}
Static void
axe_reset(struct axe_softc *sc)
{
if (sc->axe_dying)
return;
/* XXX What to reset? */
/* Wait a little while for the chip to get its brains in order. */
DELAY(1000);
return;
}
/*
* Probe for a AX88172 chip.
*/
USB_MATCH(axe)
{
USB_MATCH_START(axe, uaa);
return (axe_lookup(uaa->vendor, uaa->product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
USB_ATTACH(axe)
{
USB_ATTACH_START(axe, sc, uaa);
usbd_device_handle dev = uaa->device;
usbd_status err;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
struct mii_data *mii;
u_char eaddr[ETHER_ADDR_LEN];
char *devinfop;
const char *devname = device_xname(self);
struct ifnet *ifp;
int i, s;
devinfop = usbd_devinfo_alloc(dev, 0);
USB_ATTACH_SETUP;
sc->axe_dev = self;
err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1);
if (err) {
aprint_error_dev(self, "getting interface handle failed\n");
usbd_devinfo_free(devinfop);
USB_ATTACH_ERROR_RETURN;
}
usb_init_task(&sc->axe_tick_task, axe_tick_task, sc);
mutex_init(&sc->axe_mii_lock, MUTEX_DEFAULT, IPL_NONE);
usb_init_task(&sc->axe_stop_task, (void (*)(void *))axe_stop, sc);
err = usbd_device2interface_handle(dev, AXE_IFACE_IDX, &sc->axe_iface);
if (err) {
aprint_error_dev(self, "getting interface handle failed\n");
usbd_devinfo_free(devinfop);
USB_ATTACH_ERROR_RETURN;
}
sc->axe_udev = dev;
sc->axe_product = uaa->product;
sc->axe_vendor = uaa->vendor;
id = usbd_get_interface_descriptor(sc->axe_iface);
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i);
if (!ed) {
aprint_error_dev(self, "couldn't get ep %d\n", i);
USB_ATTACH_ERROR_RETURN;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress;
}
}
s = splnet();
/*
* Get station address.
*/
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr);
/*
* Load IPG values and PHY indexes.
*/
axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs);
axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs);
axe_unlock_mii(sc);
/*
* Work around broken adapters that appear to lie about
* their PHY addresses.
*/
sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF;
/*
* An ASIX chip was detected. Inform the world.
*/
aprint_normal_dev(self, "Ethernet address %s\n",
ether_sprintf(eaddr));
/* Initialize interface info.*/
ifp = GET_IFP(sc);
ifp->if_softc = sc;
strncpy(ifp->if_xname, devname, IFNAMSIZ);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = axe_ioctl;
ifp->if_start = axe_start;
ifp->if_watchdog = axe_watchdog;
/* ifp->if_baudrate = 10000000; */
/* ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;*/
IFQ_SET_READY(&ifp->if_snd);
/* Initialize MII/media info. */
mii = &sc->axe_mii;
mii->mii_ifp = ifp;
mii->mii_readreg = axe_miibus_readreg;
mii->mii_writereg = axe_miibus_writereg;
mii->mii_statchg = axe_miibus_statchg;
mii->mii_flags = MIIF_AUTOTSLEEP;
sc->axe_ec.ec_mii = mii;
ifmedia_init(&mii->mii_media, 0, ether_mediachange, ether_mediastatus);
mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
if (LIST_EMPTY(&mii->mii_phys)) {
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, USBDEVNAME(sc->axe_dev),
RND_TYPE_NET, 0);
#endif
usb_callout_init(sc->axe_stat_ch);
sc->axe_attached = 1;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axe_udev,
USBDEV(sc->axe_dev));
USB_ATTACH_SUCCESS_RETURN;
}
USB_DETACH(axe)
{
USB_DETACH_START(axe, sc);
int s;
struct ifnet *ifp = GET_IFP(sc);
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__));
/* Detached before attached finished, so just bail out. */
if (!sc->axe_attached)
return (0);
usb_uncallout(sc->axe_stat_ch, axe_tick, sc);
sc->axe_dying = 1;
ether_ifdetach(ifp);
if (sc->axe_ep[AXE_ENDPT_TX] != NULL)
usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
if (sc->axe_ep[AXE_ENDPT_RX] != NULL)
usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
if (sc->axe_ep[AXE_ENDPT_INTR] != NULL)
usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
/*
* Remove any pending tasks. They cannot be executing because they run
* in the same thread as detach.
*/
usb_rem_task(sc->axe_udev, &sc->axe_tick_task);
usb_rem_task(sc->axe_udev, &sc->axe_stop_task);
s = splusb();
if (--sc->axe_refcnt >= 0) {
/* Wait for processes to go away */
usb_detach_wait(USBDEV(sc->axe_dev));
}
if (ifp->if_flags & IFF_RUNNING)
axe_stop(sc);
#if defined(__NetBSD__)
#if NRND > 0
rnd_detach_source(&sc->rnd_source);
#endif
#endif /* __NetBSD__ */
mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY);
ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY);
ether_ifdetach(ifp);
if_detach(ifp);
#ifdef DIAGNOSTIC
if (sc->axe_ep[AXE_ENDPT_TX] != NULL ||
sc->axe_ep[AXE_ENDPT_RX] != NULL ||
sc->axe_ep[AXE_ENDPT_INTR] != NULL)
aprint_debug_dev(self, "detach has active endpoints\n");
#endif
sc->axe_attached = 0;
if (--sc->axe_refcnt >= 0) {
/* Wait for processes to go away. */
usb_detach_wait(USBDEV(sc->axe_dev));
}
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev,
USBDEV(sc->axe_dev));
return (0);
}
int
axe_activate(device_ptr_t self, enum devact act)
{
struct axe_softc *sc = device_private(self);
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__));
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
if_deactivate(&sc->axe_ec.ec_if);
sc->axe_dying = 1;
break;
}
return (0);
}
/*
* Initialize an RX descriptor and attach an MBUF cluster.
*/
Static int
axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m)
{
struct mbuf *m_new = NULL;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__));
if (m == NULL) {
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
if (m_new == NULL) {
aprint_error_dev(sc->axe_dev, "no memory for rx list "
"-- packet dropped!\n");
return (ENOBUFS);
}
MCLGET(m_new, M_DONTWAIT);
if (!(m_new->m_flags & M_EXT)) {
aprint_error_dev(sc->axe_dev, "no memory for rx list "
"-- packet dropped!\n");
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->axe_mbuf = m_new;
return (0);
}
Static int
axe_rx_list_init(struct axe_softc *sc)
{
struct axe_cdata *cd;
struct axe_chain *c;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__));
cd = &sc->axe_cdata;
for (i = 0; i < AXE_RX_LIST_CNT; i++) {
c = &cd->axe_rx_chain[i];
c->axe_sc = sc;
c->axe_idx = i;
if (axe_newbuf(sc, c, NULL) == ENOBUFS)
return (ENOBUFS);
if (c->axe_xfer == NULL) {
c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
if (c->axe_xfer == NULL)
return (ENOBUFS);
c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ);
if (c->axe_buf == NULL) {
usbd_free_xfer(c->axe_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static int
axe_tx_list_init(struct axe_softc *sc)
{
struct axe_cdata *cd;
struct axe_chain *c;
int i;
DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__));
cd = &sc->axe_cdata;
for (i = 0; i < AXE_TX_LIST_CNT; i++) {
c = &cd->axe_tx_chain[i];
c->axe_sc = sc;
c->axe_idx = i;
c->axe_mbuf = NULL;
if (c->axe_xfer == NULL) {
c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
if (c->axe_xfer == NULL)
return (ENOBUFS);
c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ);
if (c->axe_buf == NULL) {
usbd_free_xfer(c->axe_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
#if 0
Static void
axe_rxstart(struct ifnet *ifp)
{
struct axe_softc *sc;
struct axe_chain *c;
sc = ifp->if_softc;
axe_lock_mii(sc);
c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod];
if (axe_newbuf(sc, c, NULL) == ENOBUFS) {
ifp->if_ierrors++;
axe_unlock_mii(sc);
return;
}
/* Setup new transfer. */
usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
USBD_NO_TIMEOUT, axe_rxeof);
usbd_transfer(c->axe_xfer);
axe_unlock_mii(sc);
return;
}
#endif
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
Static void
axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct axe_softc *sc;
struct axe_chain *c;
struct ifnet *ifp;
struct mbuf *m;
u_int32_t total_len;
int s;
c = priv;
sc = c->axe_sc;
ifp = GET_IFP(sc);
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__));
if (sc->axe_dying)
return;
if (!(ifp->if_flags & IFF_RUNNING))
return;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
if (usbd_ratecheck(&sc->axe_rx_notice)) {
printf("%s: usb errors on rx: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(status));
}
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_RX]);
goto done;
}
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
m = c->axe_mbuf;
if (total_len <= sizeof(struct ether_header)) {
ifp->if_ierrors++;
goto done;
}
ifp->if_ipackets++;
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = m->m_len = total_len;
memcpy(mtod(c->axe_mbuf, char *), c->axe_buf, total_len);
/* No errors; receive the packet. */
total_len -= ETHER_CRC_LEN + 4;
s = splnet();
/* XXX ugly */
if (axe_newbuf(sc, c, NULL) == ENOBUFS) {
ifp->if_ierrors++;
goto done1;
}
#if NBPFILTER > 0
if (ifp->if_bpf)
BPF_MTAP(ifp, m);
#endif
DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->axe_dev),
__func__, m->m_len));
IF_INPUT(ifp, m);
done1:
splx(s);
done:
/* Setup new transfer. */
usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX],
c, c->axe_buf, AXE_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, axe_rxeof);
usbd_transfer(xfer);
DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->axe_dev),
__func__));
return;
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
Static void
axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
struct axe_softc *sc;
struct axe_chain *c;
struct ifnet *ifp;
int s;
c = priv;
sc = c->axe_sc;
ifp = GET_IFP(sc);
if (sc->axe_dying)
return;
s = splnet();
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->axe_dev),
usbd_errstr(status));
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_TX]);
splx(s);
return;
}
ifp->if_timer = 0;
ifp->if_flags &= ~IFF_OACTIVE;
m_freem(c->axe_mbuf);
c->axe_mbuf = NULL;
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
axe_start(ifp);
ifp->if_opackets++;
splx(s);
return;
}
Static void
axe_tick(void *xsc)
{
struct axe_softc *sc = xsc;
if (sc == NULL)
return;
DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),
__func__));
if (sc->axe_dying)
return;
/* Perform periodic stuff in process context */
usb_add_task(sc->axe_udev, &sc->axe_tick_task, USB_TASKQ_DRIVER);
}
Static void
axe_tick_task(void *xsc)
{
int s;
struct axe_softc *sc;
struct ifnet *ifp;
struct mii_data *mii;
sc = xsc;
if (sc == NULL)
return;
if (sc->axe_dying)
return;
ifp = GET_IFP(sc);
mii = GET_MII(sc);
if (mii == NULL)
return;
s = splnet();
mii_tick(mii);
usb_callout(sc->axe_stat_ch, hz, axe_tick, sc);
splx(s);
}
Static int
axe_encap(struct axe_softc *sc, struct mbuf *m, int idx)
{
struct axe_chain *c;
usbd_status err;
c = &sc->axe_cdata.axe_tx_chain[idx];
/*
* Copy the mbuf data into a contiguous buffer, leaving two
* bytes at the beginning to hold the frame length.
*/
m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf);
c->axe_mbuf = m;
usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX],
c, c->axe_buf, m->m_pkthdr.len, USBD_FORCE_SHORT_XFER, 10000,
axe_txeof);
/* Transmit */
err = usbd_transfer(c->axe_xfer);
if (err != USBD_IN_PROGRESS) {
axe_stop(sc);
return(EIO);
}
sc->axe_cdata.axe_tx_cnt++;
return(0);
}
Static void
axe_start(struct ifnet *ifp)
{
struct axe_softc *sc;
struct mbuf *m_head = NULL;
sc = ifp->if_softc;
if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING)
return;
IF_DEQUEUE(&ifp->if_snd, m_head);
if (m_head == NULL) {
return;
}
if (axe_encap(sc, m_head, 0)) {
IF_PREPEND(&ifp->if_snd, m_head);
ifp->if_flags |= IFF_OACTIVE;
return;
}
/*
* If there's a BPF listener, bounce a copy of this frame
* to him.
*/
#if NBPFILTER > 0
if (ifp->if_bpf)
BPF_MTAP(ifp, m_head);
#endif
ifp->if_flags |= IFF_OACTIVE;
/*
* Set a timeout in case the chip goes out to lunch.
*/
ifp->if_timer = 5;
return;
}
Static void
axe_init(void *xsc)
{
struct axe_softc *sc = xsc;
struct ifnet *ifp = GET_IFP(sc);
struct axe_chain *c;
usbd_status err;
int rxmode;
int i, s;
if (ifp->if_flags & IFF_RUNNING)
return;
s = splnet();
/*
* Cancel pending I/O and free all RX/TX buffers.
*/
axe_reset(sc);
/* Enable RX logic. */
/* Init RX ring. */
if (axe_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", USBDEVNAME(sc->axe_dev));
splx(s);
return;
}
/* Init TX ring. */
if (axe_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", USBDEVNAME(sc->axe_dev));
splx(s);
return;
}
/* Set transmitter IPG values */
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL);
axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL);
axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL);
/* Enable receiver, set RX mode */
rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE;
/* If we want promiscuous mode, set the allframes bit. */
if (ifp->if_flags & IFF_PROMISC)
rxmode |= AXE_RXCMD_PROMISC;
if (ifp->if_flags & IFF_BROADCAST)
rxmode |= AXE_RXCMD_BROADCAST;
axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
axe_unlock_mii(sc);
/* Load the multicast filter. */
axe_setmulti(sc);
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]);
if (err) {
printf("%s: open rx pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
splx(s);
return;
}
err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]);
if (err) {
printf("%s: open tx pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
splx(s);
return;
}
/* Start up the receive pipe. */
for (i = 0; i < AXE_RX_LIST_CNT; i++) {
c = &sc->axe_cdata.axe_rx_chain[i];
usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
c, mtod(c->axe_mbuf, char *), AXE_BUFSZ,
USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof);
usbd_transfer(c->axe_xfer);
}
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
usb_callout_init(sc->axe_stat_ch);
usb_callout(sc->axe_stat_ch, hz, axe_tick, sc);
return;
}
Static int
axe_ioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct axe_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
u_int16_t rxmode;
int error = 0;
switch(cmd) {
case SIOCSIFADDR:
ifp->if_flags |= IFF_UP;
axe_init(sc);
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
#if defined(__NetBSD__)
arp_ifinit(ifp, ifa);
#else
arp_ifinit(&sc->arpcom, ifa);
#endif
break;
#endif /* INET */
}
break;
case SIOCSIFMTU:
if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU)
error = EINVAL;
else if ((error = ifioctl_common(ifp, cmd, data)) == ENETRESET)
error = 0;
break;
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
if (ifp->if_flags & IFF_RUNNING &&
ifp->if_flags & IFF_PROMISC &&
!(sc->axe_if_flags & IFF_PROMISC)) {
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_RXCTL_READ,
0, 0, (void *)&rxmode);
rxmode = le16toh(rxmode) | AXE_RXCMD_PROMISC;
axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
0, rxmode, NULL);
axe_unlock_mii(sc);
axe_setmulti(sc);
} else if (ifp->if_flags & IFF_RUNNING &&
!(ifp->if_flags & IFF_PROMISC) &&
sc->axe_if_flags & IFF_PROMISC) {
axe_lock_mii(sc);
axe_cmd(sc, AXE_CMD_RXCTL_READ,
0, 0, (void *)&rxmode);
rxmode = le16toh(rxmode) & ~AXE_RXCMD_PROMISC;
axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
0, rxmode, NULL);
axe_unlock_mii(sc);
axe_setmulti(sc);
} else if (!(ifp->if_flags & IFF_RUNNING))
axe_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
axe_stop(sc);
}
sc->axe_if_flags = ifp->if_flags;
error = 0;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ether_ioctl(ifp, cmd, data);
if (error == ENETRESET) {
/*
* Multicast list has changed; set the hardware
* filter accordingly.
*/
if (ifp->if_flags & IFF_RUNNING)
axe_setmulti(sc);
error = 0;
}
break;
default:
error = EINVAL;
break;
}
return(error);
}
/*
* XXX
* You can't call axe_txeof since the USB transfer has not
* completed yet.
*/
Static void
axe_watchdog(struct ifnet *ifp)
{
struct axe_softc *sc;
struct axe_chain *c;
usbd_status stat;
int s;
sc = ifp->if_softc;
ifp->if_oerrors++;
printf("%s: watchdog timeout\n", USBDEVNAME(sc->axe_dev));
s = splusb();
c = &sc->axe_cdata.axe_tx_chain[0];
usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat);
axe_txeof(c->axe_xfer, c, stat);
if (ifp->if_snd.ifq_head != NULL)
axe_start(ifp);
splx(s);
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
Static void
axe_stop(struct axe_softc *sc)
{
usbd_status err;
struct ifnet *ifp;
int i;
axe_reset(sc);
ifp = GET_IFP(sc);
ifp->if_timer = 0;
usb_uncallout(sc->axe_stat_ch, axe_tick, sc);
/* Stop transfers. */
if (sc->axe_ep[AXE_ENDPT_RX] != NULL) {
err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
if (err) {
printf("%s: abort rx pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]);
if (err) {
printf("%s: close rx pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
}
sc->axe_ep[AXE_ENDPT_RX] = NULL;
}
if (sc->axe_ep[AXE_ENDPT_TX] != NULL) {
err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
if (err) {
printf("%s: abort tx pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]);
if (err) {
printf("%s: close tx pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
}
sc->axe_ep[AXE_ENDPT_TX] = NULL;
}
if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) {
err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
if (err) {
printf("%s: abort intr pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
if (err) {
printf("%s: close intr pipe failed: %s\n",
USBDEVNAME(sc->axe_dev), usbd_errstr(err));
}
sc->axe_ep[AXE_ENDPT_INTR] = NULL;
}
/* Free RX resources. */
for (i = 0; i < AXE_RX_LIST_CNT; i++) {
if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) {
m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf);
sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL;
}
if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) {
usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer);
sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL;
}
}
/* Free TX resources. */
for (i = 0; i < AXE_TX_LIST_CNT; i++) {
if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) {
m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf);
sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL;
}
if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) {
usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer);
sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL;
}
}
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}