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NetBSD/sys/dev/usb/if_upl.c

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/* $NetBSD: if_upl.c,v 1.14 2001/04/13 23:30:09 thorpej Exp $ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Prolific PL2301/PL2302 driver
*/
#include "opt_inet.h"
#include "opt_ns.h"
#include "bpfilter.h"
#include "rnd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.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_types.h>
#include <net/if_dl.h>
#include <net/netisr.h>
#define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m))
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/if_inarp.h>
#else
#error upl without INET?
#endif
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
/*
* 7 6 5 4 3 2 1 0
* tx rx 1 0
* 1110 0000 rxdata
* 1010 0000 idle
* 0010 0000 tx over
* 0110 tx over + rxd
*/
#define UPL_RXDATA 0x40
#define UPL_TXOK 0x80
#define UPL_INTR_PKTLEN 1
#define UPL_CONFIG_NO 1
#define UPL_IFACE_IDX 0
/***/
#define UPL_INTR_INTERVAL 20
#define UPL_BUFSZ 1024
#define UPL_RX_FRAMES 1
#define UPL_TX_FRAMES 1
#define UPL_RX_LIST_CNT 1
#define UPL_TX_LIST_CNT 1
#define UPL_ENDPT_RX 0x0
#define UPL_ENDPT_TX 0x1
#define UPL_ENDPT_INTR 0x2
#define UPL_ENDPT_MAX 0x3
struct upl_type {
u_int16_t upl_vid;
u_int16_t upl_did;
};
struct upl_softc;
struct upl_chain {
struct upl_softc *upl_sc;
usbd_xfer_handle upl_xfer;
char *upl_buf;
struct mbuf *upl_mbuf;
int upl_idx;
};
struct upl_cdata {
struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT];
struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT];
int upl_tx_prod;
int upl_tx_cons;
int upl_tx_cnt;
int upl_rx_prod;
};
struct upl_softc {
USBBASEDEVICE sc_dev;
struct ifnet sc_if;
#if NRND > 0
rndsource_element_t sc_rnd_source;
#endif
usb_callout_t sc_stat_ch;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
u_int16_t sc_vendor;
u_int16_t sc_product;
int sc_ed[UPL_ENDPT_MAX];
usbd_pipe_handle sc_ep[UPL_ENDPT_MAX];
struct upl_cdata sc_cdata;
uByte sc_ibuf;
char sc_dying;
char sc_attached;
u_int sc_rx_errs;
struct timeval sc_rx_notice;
u_int sc_intr_errs;
};
#ifdef UPL_DEBUG
#define DPRINTF(x) if (upldebug) logprintf x
#define DPRINTFN(n,x) if (upldebug >= (n)) logprintf x
int upldebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Various supported device vendors/products.
*/
Static struct upl_type sc_devs[] = {
{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 },
{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 },
{ 0, 0 }
};
USB_DECLARE_DRIVER(upl);
Static int upl_openpipes(struct upl_softc *);
Static int upl_tx_list_init(struct upl_softc *);
Static int upl_rx_list_init(struct upl_softc *);
Static int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *);
Static int upl_send(struct upl_softc *, struct mbuf *, int);
Static void upl_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void upl_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void upl_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void upl_start(struct ifnet *);
Static int upl_ioctl(struct ifnet *, u_long, caddr_t);
Static void upl_init(void *);
Static void upl_stop(struct upl_softc *);
Static void upl_watchdog(struct ifnet *);
Static int upl_output(struct ifnet *, struct mbuf *, struct sockaddr *,
struct rtentry *);
Static void upl_input(struct ifnet *, struct mbuf *);
/*
* Probe for a Prolific chip.
*/
USB_MATCH(upl)
{
USB_MATCH_START(upl, uaa);
struct upl_type *t;
if (uaa->iface != NULL)
return (UMATCH_NONE);
for (t = sc_devs; t->upl_vid != 0; t++)
if (uaa->vendor == t->upl_vid && uaa->product == t->upl_did)
return (UMATCH_VENDOR_PRODUCT);
return (UMATCH_NONE);
}
USB_ATTACH(upl)
{
USB_ATTACH_START(upl, sc, uaa);
char devinfo[1024];
int s;
usbd_device_handle dev = uaa->device;
usbd_interface_handle iface;
usbd_status err;
struct ifnet *ifp;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
int i;
DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p", sc, dev));
usbd_devinfo(dev, 0, devinfo);
USB_ATTACH_SETUP;
printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo);
err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1);
if (err) {
printf("%s: setting config no failed\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
sc->sc_udev = dev;
sc->sc_product = uaa->product;
sc->sc_vendor = uaa->vendor;
err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface);
if (err) {
printf("%s: getting interface handle failed\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
sc->sc_iface = iface;
id = usbd_get_interface_descriptor(iface);
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(iface, i);
if (ed == NULL) {
printf("%s: couldn't get ep %d\n",
USBDEVNAME(sc->sc_dev), i);
USB_ATTACH_ERROR_RETURN;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress;
}
}
if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 ||
sc->sc_ed[UPL_ENDPT_INTR] == 0) {
printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
s = splnet();
/* Initialize interface info.*/
ifp = &sc->sc_if;
ifp->if_softc = sc;
ifp->if_mtu = UPL_BUFSZ;
ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX;
ifp->if_ioctl = upl_ioctl;
ifp->if_start = upl_start;
ifp->if_watchdog = upl_watchdog;
strncpy(ifp->if_xname, USBDEVNAME(sc->sc_dev), IFNAMSIZ);
ifp->if_type = IFT_OTHER;
ifp->if_addrlen = 0;
ifp->if_hdrlen = 0;
ifp->if_output = upl_output;
ifp->if_input = upl_input;
ifp->if_baudrate = 12000000;
ifp->if_dlt = DLT_RAW;
/* Attach the interface. */
if_attach(ifp);
if_alloc_sadl(ifp);
#if NBPFILTER > 0
bpfattach(ifp, DLT_RAW, 0);
#endif
#if NRND > 0
rnd_attach_source(&sc->sc_rnd_source, USBDEVNAME(sc->sc_dev),
RND_TYPE_NET, 0);
#endif
sc->sc_attached = 1;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
USBDEV(sc->sc_dev));
USB_ATTACH_SUCCESS_RETURN;
}
USB_DETACH(upl)
{
USB_DETACH_START(upl, sc);
struct ifnet *ifp = &sc->sc_if;
int s;
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__));
s = splusb();
if (!sc->sc_attached) {
/* Detached before attached finished, so just bail out. */
splx(s);
return (0);
}
if (ifp->if_flags & IFF_RUNNING)
upl_stop(sc);
#if NRND > 0
rnd_detach_source(&sc->sc_rnd_source);
#endif
#if NBPFILTER > 0
bpfdetach(ifp);
#endif
if_detach(ifp);
#ifdef DIAGNOSTIC
if (sc->sc_ep[UPL_ENDPT_TX] != NULL ||
sc->sc_ep[UPL_ENDPT_RX] != NULL ||
sc->sc_ep[UPL_ENDPT_INTR] != NULL)
printf("%s: detach has active endpoints\n",
USBDEVNAME(sc->sc_dev));
#endif
sc->sc_attached = 0;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
return (0);
}
int
upl_activate(device_ptr_t self, enum devact act)
{
struct upl_softc *sc = (struct upl_softc *)self;
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__));
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
/* Deactivate the interface. */
if_deactivate(&sc->sc_if);
sc->sc_dying = 1;
break;
}
return (0);
}
/*
* Initialize an RX descriptor and attach an MBUF cluster.
*/
Static int
upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m)
{
struct mbuf *m_new = NULL;
DPRINTFN(8,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__));
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;
}
c->upl_mbuf = m_new;
return (0);
}
Static int
upl_rx_list_init(struct upl_softc *sc)
{
struct upl_cdata *cd;
struct upl_chain *c;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__));
cd = &sc->sc_cdata;
for (i = 0; i < UPL_RX_LIST_CNT; i++) {
c = &cd->upl_rx_chain[i];
c->upl_sc = sc;
c->upl_idx = i;
if (upl_newbuf(sc, c, NULL) == ENOBUFS)
return (ENOBUFS);
if (c->upl_xfer == NULL) {
c->upl_xfer = usbd_alloc_xfer(sc->sc_udev);
if (c->upl_xfer == NULL)
return (ENOBUFS);
c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ);
if (c->upl_buf == NULL) {
usbd_free_xfer(c->upl_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static int
upl_tx_list_init(struct upl_softc *sc)
{
struct upl_cdata *cd;
struct upl_chain *c;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__));
cd = &sc->sc_cdata;
for (i = 0; i < UPL_TX_LIST_CNT; i++) {
c = &cd->upl_tx_chain[i];
c->upl_sc = sc;
c->upl_idx = i;
c->upl_mbuf = NULL;
if (c->upl_xfer == NULL) {
c->upl_xfer = usbd_alloc_xfer(sc->sc_udev);
if (c->upl_xfer == NULL)
return (ENOBUFS);
c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ);
if (c->upl_buf == NULL) {
usbd_free_xfer(c->upl_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
Static void
upl_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct upl_chain *c = priv;
struct upl_softc *sc = c->upl_sc;
struct ifnet *ifp = &sc->sc_if;
struct mbuf *m;
int total_len = 0;
int s;
if (sc->sc_dying)
return;
if (!(ifp->if_flags & IFF_RUNNING))
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)
usbd_clear_endpoint_stall(sc->sc_ep[UPL_ENDPT_RX]);
goto done;
}
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
DPRINTFN(9,("%s: %s: enter status=%d length=%d\n",
USBDEVNAME(sc->sc_dev), __FUNCTION__, status, total_len));
m = c->upl_mbuf;
memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len);
ifp->if_ipackets++;
m->m_pkthdr.len = m->m_len = total_len;
m->m_pkthdr.rcvif = ifp;
s = splnet();
/* XXX ugly */
if (upl_newbuf(sc, c, NULL) == ENOBUFS) {
ifp->if_ierrors++;
goto done1;
}
#if NBPFILTER > 0
/*
* Handle BPF listeners. Let the BPF user see the packet, but
* don't pass it up to the ether_input() layer unless it's
* a broadcast packet, multicast packet, matches our ethernet
* address or the interface is in promiscuous mode.
*/
if (ifp->if_bpf) {
BPF_MTAP(ifp, m);
}
#endif
DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->sc_dev),
__FUNCTION__, m->m_len));
IF_INPUT(ifp, m);
done1:
splx(s);
done:
#if 1
/* Setup new transfer. */
usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX],
c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, upl_rxeof);
usbd_transfer(c->upl_xfer);
DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->sc_dev),
__FUNCTION__));
#endif
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
Static void
upl_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct upl_chain *c = priv;
struct upl_softc *sc = c->upl_sc;
struct ifnet *ifp = &sc->sc_if;
int s;
if (sc->sc_dying)
return;
s = splnet();
DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->sc_dev),
__FUNCTION__, status));
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)
usbd_clear_endpoint_stall(sc->sc_ep[UPL_ENDPT_TX]);
splx(s);
return;
}
ifp->if_opackets++;
m_freem(c->upl_mbuf);
c->upl_mbuf = NULL;
if (ifp->if_snd.ifq_head != NULL)
upl_start(ifp);
splx(s);
}
Static int
upl_send(struct upl_softc *sc, struct mbuf *m, int idx)
{
int total_len;
struct upl_chain *c;
usbd_status err;
c = &sc->sc_cdata.upl_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->upl_buf);
c->upl_mbuf = m;
total_len = m->m_pkthdr.len;
DPRINTFN(10,("%s: %s: total_len=%d\n",
USBDEVNAME(sc->sc_dev), __FUNCTION__, total_len));
usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_TX],
c, c->upl_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT,
upl_txeof);
/* Transmit */
err = usbd_transfer(c->upl_xfer);
if (err != USBD_IN_PROGRESS) {
printf("%s: upl_send error=%s\n", USBDEVNAME(sc->sc_dev),
usbd_errstr(err));
upl_stop(sc);
return (EIO);
}
sc->sc_cdata.upl_tx_cnt++;
return (0);
}
Static void
upl_start(struct ifnet *ifp)
{
struct upl_softc *sc = ifp->if_softc;
struct mbuf *m_head = NULL;
if (sc->sc_dying)
return;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__));
if (ifp->if_flags & IFF_OACTIVE)
return;
IF_DEQUEUE(&ifp->if_snd, m_head);
if (m_head == NULL)
return;
if (upl_send(sc, m_head, 0)) {
IF_PREPEND(&ifp->if_snd, m_head);
ifp->if_flags |= IFF_OACTIVE;
return;
}
#if NBPFILTER > 0
/*
* If there's a BPF listener, bounce a copy of this frame
* to him.
*/
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;
}
Static void
upl_init(void *xsc)
{
struct upl_softc *sc = xsc;
struct ifnet *ifp = &sc->sc_if;
int s;
if (sc->sc_dying)
return;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__));
if (ifp->if_flags & IFF_RUNNING)
return;
s = splnet();
/* Init TX ring. */
if (upl_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", USBDEVNAME(sc->sc_dev));
splx(s);
return;
}
/* Init RX ring. */
if (upl_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", USBDEVNAME(sc->sc_dev));
splx(s);
return;
}
if (sc->sc_ep[UPL_ENDPT_RX] == NULL) {
if (upl_openpipes(sc)) {
splx(s);
return;
}
}
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
}
Static int
upl_openpipes(struct upl_softc *sc)
{
struct upl_chain *c;
usbd_status err;
int i;
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]);
if (err) {
printf("%s: open rx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
return (EIO);
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]);
if (err) {
printf("%s: open tx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
return (EIO);
}
err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR],
USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc,
&sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr,
UPL_INTR_INTERVAL);
if (err) {
printf("%s: open intr pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
return (EIO);
}
#if 1
/* Start up the receive pipe. */
for (i = 0; i < UPL_RX_LIST_CNT; i++) {
c = &sc->sc_cdata.upl_rx_chain[i];
usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX],
c, c->upl_buf, UPL_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
upl_rxeof);
usbd_transfer(c->upl_xfer);
}
#endif
return (0);
}
Static void
upl_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct upl_softc *sc = priv;
struct ifnet *ifp = &sc->sc_if;
uByte stat;
DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__));
if (sc->sc_dying)
return;
if (!(ifp->if_flags & IFF_RUNNING))
return;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
return;
}
sc->sc_intr_errs++;
if (usbd_ratecheck(&sc->sc_rx_notice)) {
printf("%s: %u usb errors on intr: %s\n",
USBDEVNAME(sc->sc_dev), sc->sc_rx_errs,
usbd_errstr(status));
sc->sc_intr_errs = 0;
}
if (status == USBD_STALLED)
usbd_clear_endpoint_stall(sc->sc_ep[UPL_ENDPT_RX]);
return;
}
stat = sc->sc_ibuf;
if (stat == 0)
return;
DPRINTFN(10,("%s: %s: stat=0x%02x\n", USBDEVNAME(sc->sc_dev),
__FUNCTION__, stat));
}
Static int
upl_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
{
struct upl_softc *sc = ifp->if_softc;
struct ifaddr *ifa = (struct ifaddr *)data;
struct ifreq *ifr = (struct ifreq *)data;
int s, error = 0;
if (sc->sc_dying)
return (EIO);
DPRINTFN(5,("%s: %s: cmd=0x%08lx\n",
USBDEVNAME(sc->sc_dev), __FUNCTION__, command));
s = splnet();
switch(command) {
case SIOCSIFADDR:
ifp->if_flags |= IFF_UP;
upl_init(sc);
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
break;
#endif /* INET */
#ifdef NS
case AF_NS:
{
struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
if (ns_nullhost(*ina))
ina->x_host = *(union ns_host *)
LLADDR(ifp->if_sadl);
else
memcpy(LLADDR(ifp->if_sadl),
ina->x_host.c_host,
ifp->if_addrlen);
break;
}
#endif /* NS */
}
break;
case SIOCSIFMTU:
if (ifr->ifr_mtu > UPL_BUFSZ)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
if (!(ifp->if_flags & IFF_RUNNING))
upl_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
upl_stop(sc);
}
error = 0;
break;
default:
error = EINVAL;
break;
}
splx(s);
return (error);
}
Static void
upl_watchdog(struct ifnet *ifp)
{
struct upl_softc *sc = ifp->if_softc;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__));
if (sc->sc_dying)
return;
ifp->if_oerrors++;
printf("%s: watchdog timeout\n", USBDEVNAME(sc->sc_dev));
upl_stop(sc);
upl_init(sc);
if (ifp->if_snd.ifq_head != NULL)
upl_start(ifp);
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
Static void
upl_stop(struct upl_softc *sc)
{
usbd_status err;
struct ifnet *ifp;
int i;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__));
ifp = &sc->sc_if;
ifp->if_timer = 0;
/* Stop transfers. */
if (sc->sc_ep[UPL_ENDPT_RX] != NULL) {
err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]);
if (err) {
printf("%s: abort rx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]);
if (err) {
printf("%s: close rx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
}
sc->sc_ep[UPL_ENDPT_RX] = NULL;
}
if (sc->sc_ep[UPL_ENDPT_TX] != NULL) {
err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]);
if (err) {
printf("%s: abort tx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]);
if (err) {
printf("%s: close tx pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
}
sc->sc_ep[UPL_ENDPT_TX] = NULL;
}
if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) {
err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]);
if (err) {
printf("%s: abort intr pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]);
if (err) {
printf("%s: close intr pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
}
sc->sc_ep[UPL_ENDPT_INTR] = NULL;
}
/* Free RX resources. */
for (i = 0; i < UPL_RX_LIST_CNT; i++) {
if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) {
m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf);
sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL;
}
if (sc->sc_cdata.upl_rx_chain[i].upl_xfer != NULL) {
usbd_free_xfer(sc->sc_cdata.upl_rx_chain[i].upl_xfer);
sc->sc_cdata.upl_rx_chain[i].upl_xfer = NULL;
}
}
/* Free TX resources. */
for (i = 0; i < UPL_TX_LIST_CNT; i++) {
if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) {
m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf);
sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL;
}
if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) {
usbd_free_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer);
sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL;
}
}
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}
Static int
upl_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst,
struct rtentry *rt0)
{
int s;
DPRINTFN(10,("%s: %s: enter\n",
USBDEVNAME(((struct upl_softc *)ifp->if_softc)->sc_dev),
__FUNCTION__));
s = splnet();
/*
* Queue message on interface, and start output if interface
* not yet active.
*/
if (IF_QFULL(&ifp->if_snd)) {
IF_DROP(&ifp->if_snd);
splx(s);
return (ENOBUFS);
}
ifp->if_obytes += m->m_pkthdr.len;
IF_ENQUEUE(&ifp->if_snd, m);
if ((ifp->if_flags & IFF_OACTIVE) == 0)
(*ifp->if_start)(ifp);
splx(s);
return (0);
}
Static void
upl_input(struct ifnet *ifp, struct mbuf *m)
{
struct ifqueue *inq;
int s;
/* XXX Assume all traffic is IP */
schednetisr(NETISR_IP);
inq = &ipintrq;
s = splnet();
if (IF_QFULL(inq)) {
IF_DROP(inq);
splx(s);
#if 0
if (sc->sc_flags & SC_DEBUG)
printf("%s: input queue full\n", ifp->if_xname);
#endif
ifp->if_iqdrops++;
return;
}
IF_ENQUEUE(inq, m);
splx(s);
ifp->if_ipackets++;
ifp->if_ibytes += m->m_len;
ifp->if_lastchange = time;
}
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