diff options
Diffstat (limited to 'sys/dev/usb/if_cue.c')
| -rw-r--r-- | sys/dev/usb/if_cue.c | 1196 |
1 files changed, 1196 insertions, 0 deletions
diff --git a/sys/dev/usb/if_cue.c b/sys/dev/usb/if_cue.c new file mode 100644 index 0000000..8748a83 --- /dev/null +++ b/sys/dev/usb/if_cue.c @@ -0,0 +1,1196 @@ +/* + * 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. + * + * $FreeBSD$ + */ + +/* + * 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. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/sockio.h> +#include <sys/mbuf.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/socket.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/ethernet.h> +#include <net/if_dl.h> + +#include <net/bpf.h> + +#include <sys/bus.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdi_util.h> +#include <dev/usb/usbdivar.h> +#include <dev/usb/usbdevs.h> +#include <dev/usb/usb_ethersubr.h> + +#include <dev/usb/if_cuereg.h> + +#ifndef lint +static const char rcsid[] = + "$FreeBSD$"; +#endif + +/* + * Various supported device vendors/products. + */ +Static struct cue_type cue_devs[] = { + { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, + { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, + { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, + { 0, 0 } +}; + +Static struct usb_qdat cue_qdat; + +Static int cue_match(device_ptr_t); +Static int cue_attach(device_ptr_t); +Static int cue_detach(device_ptr_t); + +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_encap(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_rxstart(struct ifnet *); +Static void cue_start(struct ifnet *); +Static int cue_ioctl(struct ifnet *, u_long, caddr_t); +Static void cue_init(void *); +Static void cue_stop(struct cue_softc *); +Static void cue_watchdog(struct ifnet *); +Static void cue_shutdown(device_ptr_t); + +Static void cue_setmulti(struct cue_softc *); +Static u_int32_t cue_crc(caddr_t); +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); +#ifdef notdef +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 *); + +Static device_method_t cue_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, cue_match), + DEVMETHOD(device_attach, cue_attach), + DEVMETHOD(device_detach, cue_detach), + DEVMETHOD(device_shutdown, cue_shutdown), + + { 0, 0 } +}; + +Static driver_t cue_driver = { + "cue", + cue_methods, + sizeof(struct cue_softc) +}; + +Static devclass_t cue_devclass; + +DRIVER_MODULE(if_cue, uhub, cue_driver, cue_devclass, usbd_driver_load, 0); +MODULE_DEPEND(if_cue, usb, 1, 1, 1); + +#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); + + CUE_LOCK(sc); + + 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); + + CUE_UNLOCK(sc); + + if (err) + return(0); + + return(val); +} + +Static int +cue_csr_read_2(struct cue_softc *sc, int reg) +{ + usb_device_request_t req; + usbd_status err; + u_int16_t val = 0; + + if (sc->cue_dying) + return(0); + + CUE_LOCK(sc); + + 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); + + CUE_UNLOCK(sc); + + if (err) + return(0); + + return(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); + + CUE_LOCK(sc); + + 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); + + CUE_UNLOCK(sc); + + if (err) + return(-1); + + return(0); +} + +#ifdef notdef +Static int +cue_csr_write_2(struct cue_softc *sc, int reg, int val) +{ + usb_device_request_t req; + usbd_status err; + + if (sc->cue_dying) + return(0); + + CUE_LOCK(sc); + + 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); + + CUE_UNLOCK(sc); + + if (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; + + if (sc->cue_dying) + return(0); + + CUE_LOCK(sc); + + 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); + + CUE_UNLOCK(sc); + + if (err) + return(-1); + + return(0); +} + +Static int +cue_getmac(struct cue_softc *sc, void *buf) +{ + usb_device_request_t req; + usbd_status err; + + if (sc->cue_dying) + return(0); + + CUE_LOCK(sc); + + 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); + + CUE_UNLOCK(sc); + + if (err) { + printf("cue%d: read MAC address failed\n", sc->cue_unit); + return(-1); + } + + return(0); +} + +#define CUE_POLY 0xEDB88320 +#define CUE_BITS 9 + +Static u_int32_t +cue_crc(caddr_t 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 ifmultiaddr *ifma; + u_int32_t h = 0, i; + + ifp = &sc->arpcom.ac_if; + + if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { + 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 */ + TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = cue_crc(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); + } + + /* + * 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); + + return; +} + +Static void +cue_reset(struct cue_softc *sc) +{ + usb_device_request_t req; + usbd_status err; + + 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("cue%d: reset failed\n", sc->cue_unit); + + /* Wait a little while for the chip to get its brains in order. */ + DELAY(1000); + return; +} + +/* + * Probe for a Pegasus chip. + */ +USB_MATCH(cue) +{ + USB_MATCH_START(cue, uaa); + struct cue_type *t; + + if (!uaa->iface) + return(UMATCH_NONE); + + t = cue_devs; + while(t->cue_vid) { + if (uaa->vendor == t->cue_vid && + uaa->product == t->cue_did) { + return(UMATCH_VENDOR_PRODUCT); + } + t++; + } + + return(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 devinfo[1024]; + u_char eaddr[ETHER_ADDR_LEN]; + struct ifnet *ifp; + usb_interface_descriptor_t *id; + usb_endpoint_descriptor_t *ed; + int i; + + bzero(sc, sizeof(struct cue_softc)); + sc->cue_iface = uaa->iface; + sc->cue_udev = uaa->device; + sc->cue_unit = device_get_unit(self); + + if (usbd_set_config_no(sc->cue_udev, CUE_CONFIG_NO, 0)) { + printf("cue%d: getting interface handle failed\n", + sc->cue_unit); + USB_ATTACH_ERROR_RETURN; + } + + id = usbd_get_interface_descriptor(uaa->iface); + + usbd_devinfo(uaa->device, 0, devinfo); + device_set_desc_copy(self, devinfo); + printf("%s: %s\n", USBDEVNAME(self), devinfo); + + /* Find endpoints. */ + for (i = 0; i < id->bNumEndpoints; i++) { + ed = usbd_interface2endpoint_descriptor(uaa->iface, i); + if (!ed) { + printf("cue%d: couldn't get ep %d\n", + sc->cue_unit, 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; + } + } + + mtx_init(&sc->cue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, + MTX_DEF | MTX_RECURSE); + CUE_LOCK(sc); + +#ifdef notdef + /* Reset the adapter. */ + cue_reset(sc); +#endif + /* + * Get station address. + */ + cue_getmac(sc, &eaddr); + + /* + * A CATC chip was detected. Inform the world. + */ + printf("cue%d: Ethernet address: %6D\n", sc->cue_unit, eaddr, ":"); + + bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); + + ifp = &sc->arpcom.ac_if; + ifp->if_softc = sc; + ifp->if_unit = sc->cue_unit; + ifp->if_name = "cue"; + ifp->if_mtu = ETHERMTU; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_ioctl = cue_ioctl; + ifp->if_output = ether_output; + ifp->if_start = cue_start; + ifp->if_watchdog = cue_watchdog; + ifp->if_init = cue_init; + ifp->if_baudrate = 10000000; + ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; + + cue_qdat.ifp = ifp; + cue_qdat.if_rxstart = cue_rxstart; + + /* + * Call MI attach routine. + */ + ether_ifattach(ifp, eaddr); + callout_handle_init(&sc->cue_stat_ch); + usb_register_netisr(); + sc->cue_dying = 0; + + CUE_UNLOCK(sc); + USB_ATTACH_SUCCESS_RETURN; +} + +Static int +cue_detach(device_ptr_t dev) +{ + struct cue_softc *sc; + struct ifnet *ifp; + + sc = device_get_softc(dev); + CUE_LOCK(sc); + ifp = &sc->arpcom.ac_if; + + sc->cue_dying = 1; + untimeout(cue_tick, sc, sc->cue_stat_ch); + ether_ifdetach(ifp); + + if (sc->cue_ep[CUE_ENDPT_TX] != NULL) + usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); + if (sc->cue_ep[CUE_ENDPT_RX] != NULL) + usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); + if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) + usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); + + CUE_UNLOCK(sc); + mtx_destroy(&sc->cue_mtx); + + 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("cue%d: no memory for rx list " + "-- packet dropped!\n", sc->cue_unit); + return(ENOBUFS); + } + + MCLGET(m_new, M_DONTWAIT); + if (!(m_new->m_flags & M_EXT)) { + printf("cue%d: no memory for rx list " + "-- packet dropped!\n", sc->cue_unit); + 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); + } + } + + 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 = malloc(CUE_BUFSZ, M_USBDEV, M_NOWAIT); + if (c->cue_buf == NULL) + return(ENOBUFS); + } + + return(0); +} + +Static void +cue_rxstart(struct ifnet *ifp) +{ + struct cue_softc *sc; + struct cue_chain *c; + + sc = ifp->if_softc; + CUE_LOCK(sc); + c = &sc->cue_cdata.cue_rx_chain[sc->cue_cdata.cue_rx_prod]; + + if (cue_newbuf(sc, c, NULL) == ENOBUFS) { + ifp->if_ierrors++; + CUE_UNLOCK(sc); + return; + } + + /* Setup new transfer. */ + usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], + c, mtod(c->cue_mbuf, char *), CUE_BUFSZ, USBD_SHORT_XFER_OK, + USBD_NO_TIMEOUT, cue_rxeof); + usbd_transfer(c->cue_xfer); + CUE_UNLOCK(sc); + + return; +} + +/* + * 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_softc *sc; + struct cue_chain *c; + struct mbuf *m; + struct ifnet *ifp; + int total_len = 0; + u_int16_t len; + + c = priv; + sc = c->cue_sc; + CUE_LOCK(sc); + ifp = &sc->arpcom.ac_if; + + if (!(ifp->if_flags & IFF_RUNNING)) { + CUE_UNLOCK(sc); + return; + } + + if (status != USBD_NORMAL_COMPLETION) { + if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { + CUE_UNLOCK(sc); + return; + } + if (usbd_ratecheck(&sc->cue_rx_notice)) + printf("cue%d: usb error on rx: %s\n", sc->cue_unit, + usbd_errstr(status)); + if (status == USBD_STALLED) + usbd_clear_endpoint_stall(sc->cue_ep[CUE_ENDPT_RX]); + goto done; + } + + usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); + + m = c->cue_mbuf; + len = *mtod(m, u_int16_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.rcvif = (struct ifnet *)&cue_qdat; + m->m_pkthdr.len = m->m_len = total_len; + + /* Put the packet on the special USB input queue. */ + usb_ether_input(m); + CUE_UNLOCK(sc); + + return; +done: + /* Setup new transfer. */ + usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], + c, mtod(c->cue_mbuf, char *), CUE_BUFSZ, USBD_SHORT_XFER_OK, + USBD_NO_TIMEOUT, cue_rxeof); + usbd_transfer(c->cue_xfer); + CUE_UNLOCK(sc); + + return; +} + +/* + * 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_softc *sc; + struct cue_chain *c; + struct ifnet *ifp; + usbd_status err; + + c = priv; + sc = c->cue_sc; + CUE_LOCK(sc); + ifp = &sc->arpcom.ac_if; + + if (status != USBD_NORMAL_COMPLETION) { + if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { + CUE_UNLOCK(sc); + return; + } + printf("cue%d: usb error on tx: %s\n", sc->cue_unit, + usbd_errstr(status)); + if (status == USBD_STALLED) + usbd_clear_endpoint_stall(sc->cue_ep[CUE_ENDPT_TX]); + CUE_UNLOCK(sc); + return; + } + + ifp->if_timer = 0; + ifp->if_flags &= ~IFF_OACTIVE; + usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &err); + + if (c->cue_mbuf != NULL) { + c->cue_mbuf->m_pkthdr.rcvif = ifp; + usb_tx_done(c->cue_mbuf); + c->cue_mbuf = NULL; + } + + if (err) + ifp->if_oerrors++; + else + ifp->if_opackets++; + + CUE_UNLOCK(sc); + + return; +} + +Static void +cue_tick(void *xsc) +{ + struct cue_softc *sc; + struct ifnet *ifp; + + sc = xsc; + + if (sc == NULL) + return; + + CUE_LOCK(sc); + + ifp = &sc->arpcom.ac_if; + + 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++; + + sc->cue_stat_ch = timeout(cue_tick, sc, hz); + + CUE_UNLOCK(sc); + + return; +} + +Static int +cue_encap(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; + + /* 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); + + usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], + c, c->cue_buf, total_len, 0, 10000, cue_txeof); + + /* Transmit */ + err = usbd_transfer(c->cue_xfer); + if (err != USBD_IN_PROGRESS) { + cue_stop(sc); + return(EIO); + } + + sc->cue_cdata.cue_tx_cnt++; + + return(0); +} + +Static void +cue_start(struct ifnet *ifp) +{ + struct cue_softc *sc; + struct mbuf *m_head = NULL; + + sc = ifp->if_softc; + CUE_LOCK(sc); + + if (ifp->if_flags & IFF_OACTIVE) { + CUE_UNLOCK(sc); + return; + } + + IF_DEQUEUE(&ifp->if_snd, m_head); + if (m_head == NULL) { + CUE_UNLOCK(sc); + return; + } + + if (cue_encap(sc, m_head, 0)) { + IF_PREPEND(&ifp->if_snd, m_head); + ifp->if_flags |= IFF_OACTIVE; + CUE_UNLOCK(sc); + return; + } + + /* + * If there's a BPF listener, bounce a copy of this frame + * to him. + */ + BPF_MTAP(ifp, m_head); + + ifp->if_flags |= IFF_OACTIVE; + + /* + * Set a timeout in case the chip goes out to lunch. + */ + ifp->if_timer = 5; + CUE_UNLOCK(sc); + + return; +} + +Static void +cue_init(void *xsc) +{ + struct cue_softc *sc = xsc; + struct ifnet *ifp = &sc->arpcom.ac_if; + struct cue_chain *c; + usbd_status err; + int i; + + if (ifp->if_flags & IFF_RUNNING) + return; + + CUE_LOCK(sc); + + /* + * Cancel pending I/O and free all RX/TX buffers. + */ +#ifdef foo + cue_reset(sc); +#endif + + /* Set MAC address */ + for (i = 0; i < ETHER_ADDR_LEN; i++) + cue_csr_write_1(sc, CUE_PAR0 - i, sc->arpcom.ac_enaddr[i]); + + /* Enable RX logic. */ + cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON|CUE_ETHCTL_MCAST_ON); + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) { + CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); + } else { + CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); + } + + /* Init TX ring. */ + if (cue_tx_list_init(sc) == ENOBUFS) { + printf("cue%d: tx list init failed\n", sc->cue_unit); + CUE_UNLOCK(sc); + return; + } + + /* Init RX ring. */ + if (cue_rx_list_init(sc) == ENOBUFS) { + printf("cue%d: rx list init failed\n", sc->cue_unit); + CUE_UNLOCK(sc); + 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); + + /* 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("cue%d: open rx pipe failed: %s\n", + sc->cue_unit, usbd_errstr(err)); + CUE_UNLOCK(sc); + return; + } + 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("cue%d: open tx pipe failed: %s\n", + sc->cue_unit, usbd_errstr(err)); + CUE_UNLOCK(sc); + return; + } + + /* 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, mtod(c->cue_mbuf, char *), CUE_BUFSZ, + USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, cue_rxeof); + usbd_transfer(c->cue_xfer); + } + + ifp->if_flags |= IFF_RUNNING; + ifp->if_flags &= ~IFF_OACTIVE; + + CUE_UNLOCK(sc); + + sc->cue_stat_ch = timeout(cue_tick, sc, hz); + + return; +} + +Static int +cue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) +{ + struct cue_softc *sc = ifp->if_softc; + int error = 0; + + CUE_LOCK(sc); + + switch(command) { + 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 = ether_ioctl(ifp, command, data); + break; + } + + CUE_UNLOCK(sc); + + return(error); +} + +Static void +cue_watchdog(struct ifnet *ifp) +{ + struct cue_softc *sc; + struct cue_chain *c; + usbd_status stat; + + sc = ifp->if_softc; + CUE_LOCK(sc); + + ifp->if_oerrors++; + printf("cue%d: watchdog timeout\n", sc->cue_unit); + + 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 (ifp->if_snd.ifq_head != NULL) + cue_start(ifp); + CUE_UNLOCK(sc); + + return; +} + +/* + * 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; + + CUE_LOCK(sc); + + ifp = &sc->arpcom.ac_if; + ifp->if_timer = 0; + + cue_csr_write_1(sc, CUE_ETHCTL, 0); + cue_reset(sc); + untimeout(cue_tick, sc, sc->cue_stat_ch); + + /* Stop transfers. */ + if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { + err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); + if (err) { + printf("cue%d: abort rx pipe failed: %s\n", + sc->cue_unit, usbd_errstr(err)); + } + err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); + if (err) { + printf("cue%d: close rx pipe failed: %s\n", + sc->cue_unit, 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("cue%d: abort tx pipe failed: %s\n", + sc->cue_unit, usbd_errstr(err)); + } + err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); + if (err) { + printf("cue%d: close tx pipe failed: %s\n", + sc->cue_unit, 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("cue%d: abort intr pipe failed: %s\n", + sc->cue_unit, usbd_errstr(err)); + } + err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); + if (err) { + printf("cue%d: close intr pipe failed: %s\n", + sc->cue_unit, 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_buf != NULL) { + free(sc->cue_cdata.cue_rx_chain[i].cue_buf, M_USBDEV); + sc->cue_cdata.cue_rx_chain[i].cue_buf = NULL; + } + 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_buf != NULL) { + free(sc->cue_cdata.cue_tx_chain[i].cue_buf, M_USBDEV); + sc->cue_cdata.cue_tx_chain[i].cue_buf = NULL; + } + 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); + CUE_UNLOCK(sc); + + return; +} + +/* + * Stop all chip I/O so that the kernel's probe routines don't + * get confused by errant DMAs when rebooting. + */ +Static void +cue_shutdown(device_ptr_t dev) +{ + struct cue_softc *sc; + + sc = device_get_softc(dev); + + CUE_LOCK(sc); + cue_reset(sc); + cue_stop(sc); + CUE_UNLOCK(sc); + + return; +} |
