NetBSD-5.0.2/sys/dev/usb/if_cue.c
/* $NetBSD: if_cue.c,v 1.53 2008/05/24 16:40:58 cube Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000
* Bill Paul <wpaul@ee.columbia.edu>. 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.
*
* $FreeBSD: src/sys/dev/usb/if_cue.c,v 1.4 2000/01/16 22:45:06 wpaul Exp $
*/
/*
* CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate
* adapters and others.
*
* Written by Bill Paul <wpaul@ee.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
/*
* The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The
* RX filter uses a 512-bit multicast hash table, single perfect entry
* for the station address, and promiscuous mode. Unlike the ADMtek
* and KLSI chips, the CATC ASIC supports read and write combining
* mode where multiple packets can be transfered using a single bulk
* transaction, which helps performance a great deal.
*/
/*
* Ported to NetBSD and somewhat rewritten by Lennart Augustsson.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_cue.c,v 1.53 2008/05/24 16:40:58 cube Exp $");
#if defined(__NetBSD__)
#include "opt_inet.h"
#include "bpfilter.h"
#include "rnd.h"
#elif defined(__OpenBSD__)
#include "bpfilter.h"
#endif /* defined(__OpenBSD__) */
#include <sys/param.h>
#include <sys/systm.h>
#if !defined(__OpenBSD__)
#include <sys/callout.h>
#endif
#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>
#if defined(__NetBSD__)
#include <net/if_arp.h>
#endif
#include <net/if_dl.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/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/if_cuereg.h>
#ifdef CUE_DEBUG
#define DPRINTF(x) if (cuedebug) logprintf x
#define DPRINTFN(n,x) if (cuedebug >= (n)) logprintf x
int cuedebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Various supported device vendors/products.
*/
Static struct usb_devno cue_devs[] = {
{ USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE },
{ USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 },
{ USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK },
/* Belkin F5U111 adapter covered by NETMATE entry */
};
#define cue_lookup(v, p) (usb_lookup(cue_devs, v, p))
USB_DECLARE_DRIVER(cue);
Static int cue_open_pipes(struct cue_softc *);
Static int cue_tx_list_init(struct cue_softc *);
Static int cue_rx_list_init(struct cue_softc *);
Static int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *);
Static int cue_send(struct cue_softc *, struct mbuf *, int);
Static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void cue_tick(void *);
Static void cue_tick_task(void *);
Static void cue_start(struct ifnet *);
Static int cue_ioctl(struct ifnet *, u_long, void *);
Static void cue_init(void *);
Static void cue_stop(struct cue_softc *);
Static void cue_watchdog(struct ifnet *);
Static void cue_setmulti(struct cue_softc *);
Static u_int32_t cue_crc(const char *);
Static void cue_reset(struct cue_softc *);
Static int cue_csr_read_1(struct cue_softc *, int);
Static int cue_csr_write_1(struct cue_softc *, int, int);
Static int cue_csr_read_2(struct cue_softc *, int);
#if 0
Static int cue_csr_write_2(struct cue_softc *, int, int);
#endif
Static int cue_mem(struct cue_softc *, int, int, void *, int);
Static int cue_getmac(struct cue_softc *, void *);
#define CUE_SETBIT(sc, reg, x) \
cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x))
#define CUE_CLRBIT(sc, reg, x) \
cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x))
Static int
cue_csr_read_1(struct cue_softc *sc, int reg)
{
usb_device_request_t req;
usbd_status err;
u_int8_t val = 0;
if (sc->cue_dying)
return (0);
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = CUE_CMD_READREG;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, 1);
err = usbd_do_request(sc->cue_udev, &req, &val);
if (err) {
DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n",
USBDEVNAME(sc->cue_dev), reg, usbd_errstr(err)));
return (0);
}
DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n",
USBDEVNAME(sc->cue_dev), reg, val));
return (val);
}
Static int
cue_csr_read_2(struct cue_softc *sc, int reg)
{
usb_device_request_t req;
usbd_status err;
uWord val;
if (sc->cue_dying)
return (0);
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = CUE_CMD_READREG;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, 2);
err = usbd_do_request(sc->cue_udev, &req, &val);
DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n",
USBDEVNAME(sc->cue_dev), reg, UGETW(val)));
if (err) {
DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n",
USBDEVNAME(sc->cue_dev), reg, usbd_errstr(err)));
return (0);
}
return (UGETW(val));
}
Static int
cue_csr_write_1(struct cue_softc *sc, int reg, int val)
{
usb_device_request_t req;
usbd_status err;
if (sc->cue_dying)
return (0);
DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n",
USBDEVNAME(sc->cue_dev), reg, val));
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = CUE_CMD_WRITEREG;
USETW(req.wValue, val);
USETW(req.wIndex, reg);
USETW(req.wLength, 0);
err = usbd_do_request(sc->cue_udev, &req, NULL);
if (err) {
DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n",
USBDEVNAME(sc->cue_dev), reg, usbd_errstr(err)));
return (-1);
}
DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n",
USBDEVNAME(sc->cue_dev), reg, cue_csr_read_1(sc, reg)));
return (0);
}
#if 0
Static int
cue_csr_write_2(struct cue_softc *sc, int reg, int aval)
{
usb_device_request_t req;
usbd_status err;
uWord val;
int s;
if (sc->cue_dying)
return (0);
DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n",
USBDEVNAME(sc->cue_dev), reg, aval));
USETW(val, aval);
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = CUE_CMD_WRITEREG;
USETW(req.wValue, val);
USETW(req.wIndex, reg);
USETW(req.wLength, 0);
err = usbd_do_request(sc->cue_udev, &req, NULL);
if (err) {
DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n",
USBDEVNAME(sc->cue_dev), reg, usbd_errstr(err)));
return (-1);
}
return (0);
}
#endif
Static int
cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len)
{
usb_device_request_t req;
usbd_status err;
DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n",
USBDEVNAME(sc->cue_dev), cmd, addr, len));
if (cmd == CUE_CMD_READSRAM)
req.bmRequestType = UT_READ_VENDOR_DEVICE;
else
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = cmd;
USETW(req.wValue, 0);
USETW(req.wIndex, addr);
USETW(req.wLength, len);
err = usbd_do_request(sc->cue_udev, &req, buf);
if (err) {
DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n",
USBDEVNAME(sc->cue_dev), addr, usbd_errstr(err)));
return (-1);
}
return (0);
}
Static int
cue_getmac(struct cue_softc *sc, void *buf)
{
usb_device_request_t req;
usbd_status err;
DPRINTFN(10,("%s: cue_getmac\n", USBDEVNAME(sc->cue_dev)));
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = CUE_CMD_GET_MACADDR;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, ETHER_ADDR_LEN);
err = usbd_do_request(sc->cue_udev, &req, buf);
if (err) {
printf("%s: read MAC address failed\n",USBDEVNAME(sc->cue_dev));
return (-1);
}
return (0);
}
#define CUE_POLY 0xEDB88320
#define CUE_BITS 9
Static u_int32_t
cue_crc(const char *addr)
{
u_int32_t idx, bit, data, crc;
/* Compute CRC for the address value. */
crc = 0xFFFFFFFF; /* initial value */
for (idx = 0; idx < 6; idx++) {
for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0);
}
return (crc & ((1 << CUE_BITS) - 1));
}
Static void
cue_setmulti(struct cue_softc *sc)
{
struct ifnet *ifp;
struct ether_multi *enm;
struct ether_multistep step;
u_int32_t h, i;
ifp = GET_IFP(sc);
DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n",
USBDEVNAME(sc->cue_dev), ifp->if_flags));
if (ifp->if_flags & IFF_PROMISC) {
allmulti:
ifp->if_flags |= IFF_ALLMULTI;
for (i = 0; i < CUE_MCAST_TABLE_LEN; i++)
sc->cue_mctab[i] = 0xFF;
cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR,
&sc->cue_mctab, CUE_MCAST_TABLE_LEN);
return;
}
/* first, zot all the existing hash bits */
for (i = 0; i < CUE_MCAST_TABLE_LEN; i++)
sc->cue_mctab[i] = 0;
/* now program new ones */
#if defined(__NetBSD__)
ETHER_FIRST_MULTI(step, &sc->cue_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 = cue_crc(enm->enm_addrlo);
sc->cue_mctab[h >> 3] |= 1 << (h & 0x7);
ETHER_NEXT_MULTI(step, enm);
}
ifp->if_flags &= ~IFF_ALLMULTI;
/*
* Also include the broadcast address in the filter
* so we can receive broadcast frames.
*/
if (ifp->if_flags & IFF_BROADCAST) {
h = cue_crc(etherbroadcastaddr);
sc->cue_mctab[h >> 3] |= 1 << (h & 0x7);
}
cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR,
&sc->cue_mctab, CUE_MCAST_TABLE_LEN);
}
Static void
cue_reset(struct cue_softc *sc)
{
usb_device_request_t req;
usbd_status err;
DPRINTFN(2,("%s: cue_reset\n", USBDEVNAME(sc->cue_dev)));
if (sc->cue_dying)
return;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = CUE_CMD_RESET;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
err = usbd_do_request(sc->cue_udev, &req, NULL);
if (err)
printf("%s: reset failed\n", USBDEVNAME(sc->cue_dev));
/* Wait a little while for the chip to get its brains in order. */
usbd_delay_ms(sc->cue_udev, 1);
}
/*
* Probe for a CATC chip.
*/
USB_MATCH(cue)
{
USB_MATCH_START(cue, uaa);
return (cue_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(cue)
{
USB_ATTACH_START(cue, sc, uaa);
char *devinfop;
int s;
u_char eaddr[ETHER_ADDR_LEN];
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,(" : cue_attach: sc=%p, dev=%p", sc, dev));
sc->cue_dev = self;
devinfop = usbd_devinfo_alloc(dev, 0);
USB_ATTACH_SETUP;
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1);
if (err) {
aprint_error_dev(self, "setting config no failed\n");
USB_ATTACH_ERROR_RETURN;
}
sc->cue_udev = dev;
sc->cue_product = uaa->product;
sc->cue_vendor = uaa->vendor;
usb_init_task(&sc->cue_tick_task, cue_tick_task, sc);
usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc);
err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface);
if (err) {
aprint_error_dev(self, "getting interface handle failed\n");
USB_ATTACH_ERROR_RETURN;
}
sc->cue_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) {
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->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress;
}
}
#if 0
/* Reset the adapter. */
cue_reset(sc);
#endif
/*
* Get station address.
*/
cue_getmac(sc, &eaddr);
s = splnet();
/*
* A CATC 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;
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = cue_ioctl;
ifp->if_start = cue_start;
ifp->if_watchdog = cue_watchdog;
#if defined(__OpenBSD__)
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
#endif
strncpy(ifp->if_xname, USBDEVNAME(sc->cue_dev), IFNAMSIZ);
IFQ_SET_READY(&ifp->if_snd);
/* Attach the interface. */
if_attach(ifp);
Ether_ifattach(ifp, eaddr);
#if NRND > 0
rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->cue_dev),
RND_TYPE_NET, 0);
#endif
usb_callout_init(sc->cue_stat_ch);
sc->cue_attached = 1;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev,
USBDEV(sc->cue_dev));
USB_ATTACH_SUCCESS_RETURN;
}
USB_DETACH(cue)
{
USB_DETACH_START(cue, sc);
struct ifnet *ifp = GET_IFP(sc);
int s;
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev), __func__));
usb_uncallout(sc->cue_stat_ch, cue_tick, sc);
/*
* Remove any pending task. It cannot be executing because it run
* in the same thread as detach.
*/
usb_rem_task(sc->cue_udev, &sc->cue_tick_task);
usb_rem_task(sc->cue_udev, &sc->cue_stop_task);
if (!sc->cue_attached) {
/* Detached before attached finished, so just bail out. */
return (0);
}
s = splusb();
if (ifp->if_flags & IFF_RUNNING)
cue_stop(sc);
#if defined(__NetBSD__)
#if NRND > 0
rnd_detach_source(&sc->rnd_source);
#endif
ether_ifdetach(ifp);
#endif /* __NetBSD__ */
if_detach(ifp);
#ifdef DIAGNOSTIC
if (sc->cue_ep[CUE_ENDPT_TX] != NULL ||
sc->cue_ep[CUE_ENDPT_RX] != NULL ||
sc->cue_ep[CUE_ENDPT_INTR] != NULL)
aprint_debug_dev(self, "detach has active endpoints\n");
#endif
sc->cue_attached = 0;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev,
USBDEV(sc->cue_dev));
return (0);
}
int
cue_activate(device_ptr_t self, enum devact act)
{
struct cue_softc *sc = device_private(self);
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev), __func__));
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
/* Deactivate the interface. */
if_deactivate(&sc->cue_ec.ec_if);
sc->cue_dying = 1;
break;
}
return (0);
}
/*
* Initialize an RX descriptor and attach an MBUF cluster.
*/
Static int
cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m)
{
struct mbuf *m_new = NULL;
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->cue_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->cue_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->cue_mbuf = m_new;
return (0);
}
Static int
cue_rx_list_init(struct cue_softc *sc)
{
struct cue_cdata *cd;
struct cue_chain *c;
int i;
cd = &sc->cue_cdata;
for (i = 0; i < CUE_RX_LIST_CNT; i++) {
c = &cd->cue_rx_chain[i];
c->cue_sc = sc;
c->cue_idx = i;
if (cue_newbuf(sc, c, NULL) == ENOBUFS)
return (ENOBUFS);
if (c->cue_xfer == NULL) {
c->cue_xfer = usbd_alloc_xfer(sc->cue_udev);
if (c->cue_xfer == NULL)
return (ENOBUFS);
c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ);
if (c->cue_buf == NULL) {
usbd_free_xfer(c->cue_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
Static int
cue_tx_list_init(struct cue_softc *sc)
{
struct cue_cdata *cd;
struct cue_chain *c;
int i;
cd = &sc->cue_cdata;
for (i = 0; i < CUE_TX_LIST_CNT; i++) {
c = &cd->cue_tx_chain[i];
c->cue_sc = sc;
c->cue_idx = i;
c->cue_mbuf = NULL;
if (c->cue_xfer == NULL) {
c->cue_xfer = usbd_alloc_xfer(sc->cue_udev);
if (c->cue_xfer == NULL)
return (ENOBUFS);
c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ);
if (c->cue_buf == NULL) {
usbd_free_xfer(c->cue_xfer);
return (ENOBUFS);
}
}
}
return (0);
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
Static void
cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct cue_chain *c = priv;
struct cue_softc *sc = c->cue_sc;
struct ifnet *ifp = GET_IFP(sc);
struct mbuf *m;
int total_len = 0;
u_int16_t len;
int s;
DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->cue_dev),
__func__, status));
if (sc->cue_dying)
return;
if (!(ifp->if_flags & IFF_RUNNING))
return;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
sc->cue_rx_errs++;
if (usbd_ratecheck(&sc->cue_rx_notice)) {
printf("%s: %u usb errors on rx: %s\n",
USBDEVNAME(sc->cue_dev), sc->cue_rx_errs,
usbd_errstr(status));
sc->cue_rx_errs = 0;
}
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]);
goto done;
}
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len);
m = c->cue_mbuf;
len = UGETW(mtod(m, u_int8_t *));
/* No errors; receive the packet. */
total_len = len;
if (len < sizeof(struct ether_header)) {
ifp->if_ierrors++;
goto done;
}
ifp->if_ipackets++;
m_adj(m, sizeof(u_int16_t));
m->m_pkthdr.len = m->m_len = total_len;
m->m_pkthdr.rcvif = ifp;
s = splnet();
/* XXX ugly */
if (cue_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->cue_dev),
__func__, m->m_len));
IF_INPUT(ifp, m);
done1:
splx(s);
done:
/* Setup new transfer. */
usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX],
c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, cue_rxeof);
usbd_transfer(c->cue_xfer);
DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->cue_dev),
__func__));
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
Static void
cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
{
struct cue_chain *c = priv;
struct cue_softc *sc = c->cue_sc;
struct ifnet *ifp = GET_IFP(sc);
int s;
if (sc->cue_dying)
return;
s = splnet();
DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->cue_dev),
__func__, 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->cue_dev),
usbd_errstr(status));
if (status == USBD_STALLED)
usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]);
splx(s);
return;
}
ifp->if_opackets++;
m_freem(c->cue_mbuf);
c->cue_mbuf = NULL;
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
cue_start(ifp);
splx(s);
}
Static void
cue_tick(void *xsc)
{
struct cue_softc *sc = xsc;
if (sc == NULL)
return;
if (sc->cue_dying)
return;
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev), __func__));
/* Perform statistics update in process context. */
usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER);
}
Static void
cue_tick_task(void *xsc)
{
struct cue_softc *sc = xsc;
struct ifnet *ifp;
if (sc->cue_dying)
return;
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev), __func__));
ifp = GET_IFP(sc);
ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL);
ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL);
ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL);
if (cue_csr_read_2(sc, CUE_RX_FRAMEERR))
ifp->if_ierrors++;
}
Static int
cue_send(struct cue_softc *sc, struct mbuf *m, int idx)
{
int total_len;
struct cue_chain *c;
usbd_status err;
c = &sc->cue_cdata.cue_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->cue_buf + 2);
c->cue_mbuf = m;
total_len = m->m_pkthdr.len + 2;
DPRINTFN(10,("%s: %s: total_len=%d\n",
USBDEVNAME(sc->cue_dev), __func__, total_len));
/* The first two bytes are the frame length */
c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len;
c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
/* XXX 10000 */
usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX],
c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof);
/* Transmit */
err = usbd_transfer(c->cue_xfer);
if (err != USBD_IN_PROGRESS) {
printf("%s: cue_send error=%s\n", USBDEVNAME(sc->cue_dev),
usbd_errstr(err));
/* Stop the interface from process context. */
usb_add_task(sc->cue_udev, &sc->cue_stop_task,
USB_TASKQ_DRIVER);
return (EIO);
}
sc->cue_cdata.cue_tx_cnt++;
return (0);
}
Static void
cue_start(struct ifnet *ifp)
{
struct cue_softc *sc = ifp->if_softc;
struct mbuf *m_head = NULL;
if (sc->cue_dying)
return;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev),__func__));
if (ifp->if_flags & IFF_OACTIVE)
return;
IFQ_POLL(&ifp->if_snd, m_head);
if (m_head == NULL)
return;
if (cue_send(sc, m_head, 0)) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
IFQ_DEQUEUE(&ifp->if_snd, m_head);
#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
cue_init(void *xsc)
{
struct cue_softc *sc = xsc;
struct ifnet *ifp = GET_IFP(sc);
int i, s, ctl;
const u_char *eaddr;
if (sc->cue_dying)
return;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev),__func__));
if (ifp->if_flags & IFF_RUNNING)
return;
s = splnet();
/*
* Cancel pending I/O and free all RX/TX buffers.
*/
#if 1
cue_reset(sc);
#endif
/* Set advanced operation modes. */
cue_csr_write_1(sc, CUE_ADVANCED_OPMODES,
CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */
#if defined(__OpenBSD__)
eaddr = sc->arpcom.ac_enaddr;
#elif defined(__NetBSD__)
eaddr = CLLADDR(ifp->if_sadl);
#endif
/* Set MAC address */
for (i = 0; i < ETHER_ADDR_LEN; i++)
cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]);
/* Enable RX logic. */
ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON;
if (ifp->if_flags & IFF_PROMISC)
ctl |= CUE_ETHCTL_PROMISC;
cue_csr_write_1(sc, CUE_ETHCTL, ctl);
/* Init TX ring. */
if (cue_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", USBDEVNAME(sc->cue_dev));
splx(s);
return;
}
/* Init RX ring. */
if (cue_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", USBDEVNAME(sc->cue_dev));
splx(s);
return;
}
/* Load the multicast filter. */
cue_setmulti(sc);
/*
* Set the number of RX and TX buffers that we want
* to reserve inside the ASIC.
*/
cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES);
cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES);
/* Set advanced operation modes. */
cue_csr_write_1(sc, CUE_ADVANCED_OPMODES,
CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */
/* Program the LED operation. */
cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK);
if (sc->cue_ep[CUE_ENDPT_RX] == NULL) {
if (cue_open_pipes(sc)) {
splx(s);
return;
}
}
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
usb_callout(sc->cue_stat_ch, hz, cue_tick, sc);
}
Static int
cue_open_pipes(struct cue_softc *sc)
{
struct cue_chain *c;
usbd_status err;
int i;
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]);
if (err) {
printf("%s: open rx pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
return (EIO);
}
err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]);
if (err) {
printf("%s: open tx pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
return (EIO);
}
/* Start up the receive pipe. */
for (i = 0; i < CUE_RX_LIST_CNT; i++) {
c = &sc->cue_cdata.cue_rx_chain[i];
usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX],
c, c->cue_buf, CUE_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
cue_rxeof);
usbd_transfer(c->cue_xfer);
}
return (0);
}
Static int
cue_ioctl(struct ifnet *ifp, u_long command, void *data)
{
struct cue_softc *sc = ifp->if_softc;
struct ifaddr *ifa = (struct ifaddr *)data;
struct ifreq *ifr = (struct ifreq *)data;
int s, error = 0;
if (sc->cue_dying)
return (EIO);
s = splnet();
switch(command) {
case SIOCSIFADDR:
ifp->if_flags |= IFF_UP;
cue_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, command, 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->cue_if_flags & IFF_PROMISC)) {
CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC);
cue_setmulti(sc);
} else if (ifp->if_flags & IFF_RUNNING &&
!(ifp->if_flags & IFF_PROMISC) &&
sc->cue_if_flags & IFF_PROMISC) {
CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC);
cue_setmulti(sc);
} else if (!(ifp->if_flags & IFF_RUNNING))
cue_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
cue_stop(sc);
}
sc->cue_if_flags = ifp->if_flags;
error = 0;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
cue_setmulti(sc);
error = 0;
break;
default:
error = EINVAL;
break;
}
splx(s);
return (error);
}
Static void
cue_watchdog(struct ifnet *ifp)
{
struct cue_softc *sc = ifp->if_softc;
struct cue_chain *c;
usbd_status stat;
int s;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev),__func__));
if (sc->cue_dying)
return;
ifp->if_oerrors++;
printf("%s: watchdog timeout\n", USBDEVNAME(sc->cue_dev));
s = splusb();
c = &sc->cue_cdata.cue_tx_chain[0];
usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat);
cue_txeof(c->cue_xfer, c, stat);
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
cue_start(ifp);
splx(s);
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
Static void
cue_stop(struct cue_softc *sc)
{
usbd_status err;
struct ifnet *ifp;
int i;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->cue_dev),__func__));
ifp = GET_IFP(sc);
ifp->if_timer = 0;
cue_csr_write_1(sc, CUE_ETHCTL, 0);
cue_reset(sc);
usb_uncallout(sc->cue_stat_ch, cue_tick, sc);
/* Stop transfers. */
if (sc->cue_ep[CUE_ENDPT_RX] != NULL) {
err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]);
if (err) {
printf("%s: abort rx pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]);
if (err) {
printf("%s: close rx pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
}
sc->cue_ep[CUE_ENDPT_RX] = NULL;
}
if (sc->cue_ep[CUE_ENDPT_TX] != NULL) {
err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]);
if (err) {
printf("%s: abort tx pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]);
if (err) {
printf("%s: close tx pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
}
sc->cue_ep[CUE_ENDPT_TX] = NULL;
}
if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) {
err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]);
if (err) {
printf("%s: abort intr pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]);
if (err) {
printf("%s: close intr pipe failed: %s\n",
USBDEVNAME(sc->cue_dev), usbd_errstr(err));
}
sc->cue_ep[CUE_ENDPT_INTR] = NULL;
}
/* Free RX resources. */
for (i = 0; i < CUE_RX_LIST_CNT; i++) {
if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) {
m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf);
sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL;
}
if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) {
usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer);
sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL;
}
}
/* Free TX resources. */
for (i = 0; i < CUE_TX_LIST_CNT; i++) {
if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) {
m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf);
sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL;
}
if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) {
usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer);
sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL;
}
}
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}