/* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */ /* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */ /* $FreeBSD: src/sys/dev/usb/if_udav.c,v 1.36 2008/04/26 05:46:28 imp Exp $ */ /*- * Copyright (c) 2003 * Shingo WATANABE . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ /* * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY) * The spec can be found at the following url. * http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf */ /* * NOTE: all function names beginning like "udav_cfg_" can only * be called from within the config thread function ! */ /* * TODO: * Interrupt Endpoint support * External PHYs */ #include __FBSDID("$FreeBSD: src/sys/dev/usb/if_udav.c,v 1.36 2008/04/26 05:46:28 imp Exp $"); #include "opt_inet.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define usbd_config_td_cc udav_config_copy #define usbd_config_td_softc udav_softc #include #include #include #include "usbdevs.h" #include #include /* "device miibus" required. See GENERIC if you get errors here. */ #include "miibus_if.h" #include /* prototypes */ static device_probe_t udav_probe; static device_attach_t udav_attach; static device_detach_t udav_detach; static device_shutdown_t udav_shutdown; static usbd_callback_t udav_bulk_write_clear_stall_callback; static usbd_callback_t udav_bulk_write_callback; static usbd_callback_t udav_bulk_read_clear_stall_callback; static usbd_callback_t udav_bulk_read_callback; static usbd_callback_t udav_intr_clear_stall_callback; static usbd_callback_t udav_intr_callback; static usbd_config_td_command_t udav_cfg_first_time_setup; static usbd_config_td_command_t udav_cfg_pre_init; static usbd_config_td_command_t udav_cfg_init; static usbd_config_td_command_t udav_config_copy; static usbd_config_td_command_t udav_cfg_promisc_upd; static usbd_config_td_command_t udav_cfg_pre_stop; static usbd_config_td_command_t udav_cfg_stop; static usbd_config_td_command_t udav_cfg_ifmedia_change; static usbd_config_td_command_t udav_cfg_tick; static void udav_cfg_do_request(struct udav_softc *sc, usb_device_request_t *req, void *data); static void udav_cfg_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, uint16_t len); static void udav_cfg_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, uint16_t len); static uint8_t udav_cfg_csr_read1(struct udav_softc *sc, uint16_t offset); static void udav_cfg_csr_write1(struct udav_softc *sc, uint16_t offset, uint8_t ch); static void udav_init_cb(void *arg); static void udav_cfg_reset(struct udav_softc *sc); static void udav_start_cb(struct ifnet *ifp); static void udav_start_transfers(struct udav_softc *sc); static int udav_ioctl_cb(struct ifnet *ifp, u_long cmd, caddr_t data); static void udav_watchdog(void *arg); static int udav_ifmedia_change_cb(struct ifnet *ifp); static void udav_ifmedia_status_cb(struct ifnet *ifp, struct ifmediareq *ifmr); static miibus_readreg_t udav_cfg_miibus_readreg; static miibus_writereg_t udav_cfg_miibus_writereg; static miibus_statchg_t udav_cfg_miibus_statchg; static const struct usbd_config udav_config[UDAV_ENDPT_MAX] = { [0] = { .type = UE_BULK, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_OUT, .mh.bufsize = (MCLBYTES + 2), .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,}, .mh.callback = &udav_bulk_write_callback, .mh.timeout = 10000, /* 10 seconds */ }, [1] = { .type = UE_BULK, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_IN, .mh.bufsize = (MCLBYTES + 3), .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, .mh.callback = &udav_bulk_read_callback, .mh.timeout = 0, /* no timeout */ }, [2] = { .type = UE_CONTROL, .endpoint = 0x00, /* Control pipe */ .direction = UE_DIR_ANY, .mh.bufsize = sizeof(usb_device_request_t), .mh.flags = {}, .mh.callback = &udav_bulk_write_clear_stall_callback, .mh.timeout = 1000, /* 1 second */ .mh.interval = 50, /* 50ms */ }, [3] = { .type = UE_CONTROL, .endpoint = 0x00, /* Control pipe */ .direction = UE_DIR_ANY, .mh.bufsize = sizeof(usb_device_request_t), .mh.flags = {}, .mh.callback = &udav_bulk_read_clear_stall_callback, .mh.timeout = 1000, /* 1 second */ .mh.interval = 50, /* 50ms */ }, [4] = { .type = UE_INTERRUPT, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_IN, .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, .mh.bufsize = 0, /* use wMaxPacketSize */ .mh.callback = &udav_intr_callback, }, [5] = { .type = UE_CONTROL, .endpoint = 0x00, /* Control pipe */ .direction = UE_DIR_ANY, .mh.bufsize = sizeof(usb_device_request_t), .mh.flags = {}, .mh.callback = &udav_intr_clear_stall_callback, .mh.timeout = 1000, /* 1 second */ .mh.interval = 50, /* 50ms */ }, }; static device_method_t udav_methods[] = { /* Device interface */ DEVMETHOD(device_probe, udav_probe), DEVMETHOD(device_attach, udav_attach), DEVMETHOD(device_detach, udav_detach), DEVMETHOD(device_shutdown, udav_shutdown), /* bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_driver_added, bus_generic_driver_added), /* MII interface */ DEVMETHOD(miibus_readreg, udav_cfg_miibus_readreg), DEVMETHOD(miibus_writereg, udav_cfg_miibus_writereg), DEVMETHOD(miibus_statchg, udav_cfg_miibus_statchg), {0, 0} }; static driver_t udav_driver = { .name = "udav", .methods = udav_methods, .size = sizeof(struct udav_softc), }; static devclass_t udav_devclass; DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, usbd_driver_load, 0); DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); MODULE_DEPEND(udav, usb, 1, 1, 1); MODULE_DEPEND(udav, ether, 1, 1, 1); MODULE_DEPEND(udav, miibus, 1, 1, 1); #ifdef USB_DEBUG #define DPRINTF(sc,n,fmt,...) \ do { if (udav_debug > (n)) { \ printf("%s:%s: " fmt, (sc)->sc_name, \ __FUNCTION__,## __VA_ARGS__); } } while (0) static int udav_debug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, "udav debug level"); #else #define DPRINTF(...) do { } while (0) #endif #define UDAV_CFG_SETBIT(sc, reg, x) \ udav_cfg_csr_write1(sc, reg, udav_cfg_csr_read1(sc, reg) | (x)) #define UDAV_CFG_CLRBIT(sc, reg, x) \ udav_cfg_csr_write1(sc, reg, udav_cfg_csr_read1(sc, reg) & ~(x)) struct udav_type { struct usb_devno udav_dev; uint16_t udav_flags; }; static const struct udav_type udav_devs[] = { /* ShanTou DM9601 USB NIC */ {{USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601}, 0}, /* ShanTou ST268 USB NIC */ {{USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268}, 0}, /* Corega USB-TXC */ {{USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC}, 0}, }; #define udav_lookup(v, p) ((const struct udav_type *)usb_lookup(udav_devs, v, p)) static int udav_probe(device_t dev) { struct usb_attach_arg *uaa = device_get_ivars(dev); if (uaa->usb_mode != USB_MODE_HOST) { return (UMATCH_NONE); } if (uaa->iface != NULL) { return (UMATCH_NONE); } return ((udav_lookup(uaa->vendor, uaa->product) != NULL) ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE); } static int udav_attach(device_t dev) { struct usb_attach_arg *uaa = device_get_ivars(dev); struct udav_softc *sc = device_get_softc(dev); int32_t error; uint8_t iface_index; if (sc == NULL) { return (ENOMEM); } sc->sc_udev = uaa->device; sc->sc_dev = dev; sc->sc_unit = device_get_unit(dev); sc->sc_flags = udav_lookup(uaa->vendor, uaa->product)->udav_flags; usbd_set_device_desc(dev); snprintf(sc->sc_name, sizeof(sc->sc_name), "%s", device_get_nameunit(dev)); mtx_init(&(sc->sc_mtx), "udav lock", NULL, MTX_DEF | MTX_RECURSE); usb_callout_init_mtx(&(sc->sc_watchdog), &(sc->sc_mtx), CALLOUT_RETURNUNLOCKED); error = usbd_set_config_no(uaa->device, UDAV_CONFIG_NO, 1); if (error) { device_printf(dev, "setting config " "number failed!\n"); goto detach; } iface_index = UDAV_IFACE_INDEX; error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, udav_config, UDAV_ENDPT_MAX, sc, &(sc->sc_mtx)); if (error) { device_printf(dev, "allocating USB " "transfers failed!\n"); goto detach; } error = usbd_config_td_setup(&(sc->sc_config_td), sc, &(sc->sc_mtx), NULL, sizeof(struct udav_config_copy), 16); if (error) { device_printf(dev, "could not setup config " "thread!\n"); goto detach; } mtx_lock(&(sc->sc_mtx)); sc->sc_flags |= UDAV_FLAG_WAIT_LINK; /* start setup */ usbd_config_td_queue_command (&(sc->sc_config_td), NULL, &udav_cfg_first_time_setup, 0, 0); /* start watchdog (will exit mutex) */ udav_watchdog(sc); return (0); /* success */ detach: udav_detach(dev); return (ENXIO); /* failure */ } static void udav_cfg_first_time_setup(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct ifnet *ifp; int error; uint8_t eaddr[min(ETHER_ADDR_LEN, 6)]; /* reset the adapter */ udav_cfg_reset(sc); /* get Ethernet Address */ udav_cfg_csr_read(sc, UDAV_PAR, eaddr, ETHER_ADDR_LEN); mtx_unlock(&(sc->sc_mtx)); ifp = if_alloc(IFT_ETHER); mtx_lock(&(sc->sc_mtx)); if (ifp == NULL) { printf("%s: could not if_alloc()\n", sc->sc_name); goto done; } sc->sc_evilhack = ifp; ifp->if_softc = sc; if_initname(ifp, "udav", sc->sc_unit); ifp->if_mtu = ETHERMTU; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_start = udav_start_cb; ifp->if_ioctl = udav_ioctl_cb; ifp->if_watchdog = NULL; ifp->if_init = udav_init_cb; IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; IFQ_SET_READY(&ifp->if_snd); /* * XXX need Giant when accessing the device structures ! */ mtx_unlock(&(sc->sc_mtx)); mtx_lock(&Giant); error = mii_phy_probe(sc->sc_dev, &(sc->sc_miibus), &udav_ifmedia_change_cb, &udav_ifmedia_status_cb); mtx_unlock(&Giant); mtx_lock(&(sc->sc_mtx)); if (error) { printf("%s: MII without any PHY!\n", sc->sc_name); if_free(ifp); goto done; } sc->sc_ifp = ifp; mtx_unlock(&(sc->sc_mtx)); /* * Call MI attach routine. */ ether_ifattach(ifp, eaddr); mtx_lock(&(sc->sc_mtx)); done: return; } static int udav_detach(device_t dev) { struct udav_softc *sc = device_get_softc(dev); struct ifnet *ifp; usbd_config_td_stop(&(sc->sc_config_td)); mtx_lock(&(sc->sc_mtx)); usb_callout_stop(&sc->sc_watchdog); udav_cfg_pre_stop(sc, NULL, 0); ifp = sc->sc_ifp; mtx_unlock(&(sc->sc_mtx)); /* stop all USB transfers first */ usbd_transfer_unsetup(sc->sc_xfer, UDAV_ENDPT_MAX); /* get rid of any late children */ bus_generic_detach(dev); if (ifp) { ether_ifdetach(ifp); if_free(ifp); } usbd_config_td_unsetup(&(sc->sc_config_td)); usb_callout_drain(&(sc->sc_watchdog)); mtx_destroy(&(sc->sc_mtx)); return (0); } static void udav_cfg_do_request(struct udav_softc *sc, usb_device_request_t *req, void *data) { uint16_t length; usbd_status_t err; if (usbd_config_td_is_gone(&(sc->sc_config_td))) { goto error; } err = usbd_do_request_flags (sc->sc_udev, &(sc->sc_mtx), req, data, 0, NULL, 1000); if (err) { DPRINTF(sc, 0, "device request failed, err=%s " "(ignored)\n", usbd_errstr(err)); error: length = UGETW(req->wLength); if ((req->bmRequestType & UT_READ) && length) { bzero(data, length); } } return; } #if 0 static void udav_cfg_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, uint16_t len) { usb_device_request_t req; len &= 0xff; req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = UDAV_REQ_MEM_READ; USETW(req.wValue, 0x0000); USETW(req.wIndex, offset); USETW(req.wLength, len); udav_cfg_do_request(sc, &req, buf); return; } static void udav_cfg_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, uint16_t len) { usb_device_request_t req; len &= 0xff; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UDAV_REQ_MEM_WRITE; USETW(req.wValue, 0x0000); USETW(req.wIndex, offset); USETW(req.wLength, len); udav_cfg_do_request(sc, &req, buf); return; } static void udav_cfg_mem_write1(struct udav_softc *sc, uint16_t offset, uint8_t ch) { usb_device_request_t req; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UDAV_REQ_MEM_WRITE1; USETW(req.wValue, ch); USETW(req.wIndex, offset); USETW(req.wLength, 0x0000); udav_cfg_do_request(sc, &req, NULL); return; } #endif static void udav_cfg_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, uint16_t len) { usb_device_request_t req; len &= 0xff; req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = UDAV_REQ_REG_READ; USETW(req.wValue, 0x0000); USETW(req.wIndex, offset); USETW(req.wLength, len); udav_cfg_do_request(sc, &req, buf); return; } static void udav_cfg_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, uint16_t len) { usb_device_request_t req; offset &= 0xff; len &= 0xff; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UDAV_REQ_REG_WRITE; USETW(req.wValue, 0x0000); USETW(req.wIndex, offset); USETW(req.wLength, len); udav_cfg_do_request(sc, &req, buf); return; } static uint8_t udav_cfg_csr_read1(struct udav_softc *sc, uint16_t offset) { uint8_t val; udav_cfg_csr_read(sc, offset, &val, 1); return (val); } static void udav_cfg_csr_write1(struct udav_softc *sc, uint16_t offset, uint8_t ch) { usb_device_request_t req; offset &= 0xff; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UDAV_REQ_REG_WRITE1; USETW(req.wValue, ch); USETW(req.wIndex, offset); USETW(req.wLength, 0x0000); udav_cfg_do_request(sc, &req, NULL); return; } static void udav_init_cb(void *arg) { struct udav_softc *sc = arg; mtx_lock(&(sc->sc_mtx)); usbd_config_td_queue_command (&(sc->sc_config_td), &udav_cfg_pre_init, &udav_cfg_init, 0, 0); mtx_unlock(&(sc->sc_mtx)); return; } static void udav_cfg_pre_init(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; /* immediate configuration */ udav_cfg_pre_stop(sc, cc, 0); ifp->if_drv_flags |= IFF_DRV_RUNNING; sc->sc_flags |= UDAV_FLAG_HL_READY; return; } static void udav_cfg_init(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct mii_data *mii = GET_MII(sc); /* * Cancel pending I/O */ udav_cfg_stop(sc, cc, 0); /* set MAC address */ udav_cfg_csr_write(sc, UDAV_PAR, cc->if_lladdr, ETHER_ADDR_LEN); /* initialize network control register */ /* disable loopback */ UDAV_CFG_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); /* Initialize RX control register */ UDAV_CFG_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); /* load multicast filter and update promiscious mode bit */ udav_cfg_promisc_upd(sc, cc, 0); /* enable RX */ UDAV_CFG_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); /* clear POWER_DOWN state of internal PHY */ UDAV_CFG_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); UDAV_CFG_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); mii_mediachg(mii); sc->sc_flags |= (UDAV_FLAG_READ_STALL | UDAV_FLAG_WRITE_STALL | UDAV_FLAG_LL_READY); udav_start_transfers(sc); return; } static void udav_cfg_reset(struct udav_softc *sc) { usbd_status_t err; uint16_t to; /* Select PHY */ #if 1 /* * XXX: force select internal phy. * external phy routines are not tested. */ UDAV_CFG_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); #else if (sc->sc_flags & UDAV_EXT_PHY) { UDAV_CFG_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); } else { UDAV_CFG_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); } #endif UDAV_CFG_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); for (to = 0;; to++) { if (to < 100) { err = usbd_config_td_sleep(&(sc->sc_config_td), hz / 100); if (err) { break; } if (!(udav_cfg_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) { break; } } else { printf("%s: reset timeout!\n", sc->sc_name); break; } } err = usbd_config_td_sleep(&(sc->sc_config_td), hz / 100); return; } #define UDAV_BITS 6 #define UDAV_CALCHASH(addr) \ (ether_crc32_le((addr), ETHER_ADDR_LEN) & ((1 << UDAV_BITS) - 1)) static void udav_config_copy(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; struct ifmultiaddr *ifma; uint8_t h; uint8_t i; bzero(cc, sizeof(*cc)); if (ifp) { for (i = 0; i < ETHER_ADDR_LEN; i++) { cc->if_lladdr[i] = IF_LLADDR(ifp)[i]; } cc->if_flags = ifp->if_flags; cc->if_hashes[7] |= 0x80; /* broadcast address */ IF_ADDR_LOCK(ifp); TAILQ_FOREACH(ifma, &(ifp->if_multiaddrs), ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) { continue; } h = UDAV_CALCHASH(LLADDR((struct sockaddr_dl *) ifma->ifma_addr)); cc->if_hashes[h >> 3] |= 1 << (h & 0x7); } IF_ADDR_UNLOCK(ifp); } return; } static void udav_cfg_promisc_upd(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { uint8_t rxmode; rxmode = udav_cfg_csr_read1(sc, UDAV_RCR); rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); if (cc->if_flags & IFF_PROMISC) { rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; } else if (cc->if_flags & IFF_ALLMULTI) { rxmode |= UDAV_RCR_ALL; } /* write hash value to the register */ udav_cfg_csr_write(sc, UDAV_MAR, cc->if_hashes, sizeof(cc->if_hashes)); /* write new mode bits */ udav_cfg_csr_write1(sc, UDAV_RCR, rxmode); return; } static void udav_start_cb(struct ifnet *ifp) { struct udav_softc *sc = ifp->if_softc; mtx_lock(&(sc->sc_mtx)); udav_start_transfers(sc); mtx_unlock(&(sc->sc_mtx)); return; } static void udav_start_transfers(struct udav_softc *sc) { if ((sc->sc_flags & UDAV_FLAG_LL_READY) && (sc->sc_flags & UDAV_FLAG_HL_READY)) { /* * start the USB transfers, if not already started: */ usbd_transfer_start(sc->sc_xfer[4]); usbd_transfer_start(sc->sc_xfer[1]); usbd_transfer_start(sc->sc_xfer[0]); } return; } static void udav_bulk_write_clear_stall_callback(struct usbd_xfer *xfer) { struct udav_softc *sc = xfer->priv_sc; struct usbd_xfer *xfer_other = sc->sc_xfer[0]; if (usbd_clear_stall_callback(xfer, xfer_other)) { DPRINTF(sc, 0, "stall cleared\n"); sc->sc_flags &= ~UDAV_FLAG_WRITE_STALL; usbd_transfer_start(xfer_other); } return; } static void udav_bulk_write_callback(struct usbd_xfer *xfer) { struct udav_softc *sc = xfer->priv_sc; struct ifnet *ifp = sc->sc_ifp; struct mbuf *m; uint32_t extra_len; uint32_t temp_len; uint8_t buf[2]; switch (USBD_GET_STATE(xfer)) { case USBD_ST_TRANSFERRED: DPRINTF(sc, 10, "transfer complete\n"); ifp->if_opackets++; case USBD_ST_SETUP: if (sc->sc_flags & UDAV_FLAG_WRITE_STALL) { usbd_transfer_start(sc->sc_xfer[2]); goto done; } if (sc->sc_flags & UDAV_FLAG_WAIT_LINK) { /* * don't send anything if there is no link ! */ goto done; } IFQ_DRV_DEQUEUE(&(ifp->if_snd), m); if (m == NULL) { goto done; } if (m->m_pkthdr.len > MCLBYTES) { m->m_pkthdr.len = MCLBYTES; } if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; } else { extra_len = 0; } temp_len = (m->m_pkthdr.len + extra_len); /* * the frame length is specified in the first 2 bytes of the * buffer */ buf[0] = (uint8_t)(temp_len); buf[1] = (uint8_t)(temp_len >> 8); temp_len += 2; usbd_copy_in(xfer->frbuffers, 0, buf, 2); usbd_m_copy_in(xfer->frbuffers, 2, m, 0, m->m_pkthdr.len); if (extra_len) { usbd_bzero(xfer->frbuffers, temp_len - extra_len, extra_len); } /* * if there's a BPF listener, bounce a copy * of this frame to him: */ BPF_MTAP(ifp, m); m_freem(m); xfer->frlengths[0] = temp_len; usbd_start_hardware(xfer); done: return; default: /* Error */ DPRINTF(sc, 10, "transfer error, %s\n", usbd_errstr(xfer->error)); if (xfer->error != USBD_ERR_CANCELLED) { /* try to clear stall first */ sc->sc_flags |= UDAV_FLAG_WRITE_STALL; usbd_transfer_start(sc->sc_xfer[2]); } ifp->if_oerrors++; return; } } static void udav_bulk_read_clear_stall_callback(struct usbd_xfer *xfer) { struct udav_softc *sc = xfer->priv_sc; struct usbd_xfer *xfer_other = sc->sc_xfer[1]; if (usbd_clear_stall_callback(xfer, xfer_other)) { DPRINTF(sc, 0, "stall cleared\n"); sc->sc_flags &= ~UDAV_FLAG_READ_STALL; usbd_transfer_start(xfer_other); } return; } static void udav_bulk_read_callback(struct usbd_xfer *xfer) { struct udav_softc *sc = xfer->priv_sc; struct ifnet *ifp = sc->sc_ifp; uint8_t status; uint16_t total_len; struct mbuf *m = NULL; switch (USBD_GET_STATE(xfer)) { case USBD_ST_TRANSFERRED: if (xfer->actlen < 1) { ifp->if_ierrors++; goto tr_setup; } xfer->actlen -= 1; usbd_copy_out(xfer->frbuffers, 0, &status, 1); if (status & UDAV_RSR_LCS) { ifp->if_collisions++; goto tr_setup; } if ((status & UDAV_RSR_ERR) || (xfer->actlen < 2)) { ifp->if_ierrors++; goto tr_setup; } usbd_copy_out(xfer->frbuffers, 1, &total_len, 2); total_len = le16toh(total_len); xfer->actlen -= 2; xfer->actlen = min(xfer->actlen, total_len); if (xfer->actlen < (sizeof(struct ether_header) + ETHER_CRC_LEN)) { ifp->if_ierrors++; goto tr_setup; } xfer->actlen -= ETHER_CRC_LEN; m = usbd_ether_get_mbuf(); if (m == NULL) { ifp->if_ierrors++; goto tr_setup; } xfer->actlen = min(xfer->actlen, m->m_len); usbd_copy_out(xfer->frbuffers, 3, m->m_data, xfer->actlen); ifp->if_ipackets++; m->m_pkthdr.rcvif = ifp; m->m_pkthdr.len = m->m_len = xfer->actlen; case USBD_ST_SETUP: tr_setup: if (sc->sc_flags & UDAV_FLAG_READ_STALL) { usbd_transfer_start(sc->sc_xfer[3]); } else { xfer->frlengths[0] = xfer->max_data_length; usbd_start_hardware(xfer); } /* * At the end of a USB callback it is always safe to unlock * the private mutex of a device! That is why we do the * "if_input" here, and not some lines up! */ if (m) { mtx_unlock(&(sc->sc_mtx)); (ifp->if_input) (ifp, m); mtx_lock(&(sc->sc_mtx)); } return; default: /* Error */ if (xfer->error != USBD_ERR_CANCELLED) { /* try to clear stall first */ sc->sc_flags |= UDAV_FLAG_READ_STALL; usbd_transfer_start(sc->sc_xfer[3]); } DPRINTF(sc, 0, "bulk read error, %s\n", usbd_errstr(xfer->error)); return; } } static void udav_intr_clear_stall_callback(struct usbd_xfer *xfer) { struct udav_softc *sc = xfer->priv_sc; struct usbd_xfer *xfer_other = sc->sc_xfer[4]; if (usbd_clear_stall_callback(xfer, xfer_other)) { DPRINTF(sc, 0, "stall cleared\n"); sc->sc_flags &= ~UDAV_FLAG_INTR_STALL; usbd_transfer_start(xfer_other); } return; } static void udav_intr_callback(struct usbd_xfer *xfer) { struct udav_softc *sc = xfer->priv_sc; switch (USBD_GET_STATE(xfer)) { case USBD_ST_TRANSFERRED: case USBD_ST_SETUP: if (sc->sc_flags & UDAV_FLAG_INTR_STALL) { usbd_transfer_start(sc->sc_xfer[5]); } else { xfer->frlengths[0] = xfer->max_data_length; usbd_start_hardware(xfer); } return; default: /* Error */ if (xfer->error != USBD_ERR_CANCELLED) { /* start clear stall */ sc->sc_flags |= UDAV_FLAG_INTR_STALL; usbd_transfer_start(sc->sc_xfer[5]); } return; } } static int udav_ioctl_cb(struct ifnet *ifp, u_long cmd, caddr_t data) { struct udav_softc *sc = ifp->if_softc; struct mii_data *mii; int error = 0; mtx_lock(&(sc->sc_mtx)); switch (cmd) { case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { usbd_config_td_queue_command (&(sc->sc_config_td), &udav_config_copy, &udav_cfg_promisc_upd, 0, 0); } else { usbd_config_td_queue_command (&(sc->sc_config_td), &udav_cfg_pre_init, &udav_cfg_init, 0, 0); } } else { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { usbd_config_td_queue_command (&(sc->sc_config_td), &udav_cfg_pre_stop, &udav_cfg_stop, 0, 0); } } break; case SIOCADDMULTI: case SIOCDELMULTI: usbd_config_td_queue_command (&(sc->sc_config_td), &udav_config_copy, &udav_cfg_promisc_upd, 0, 0); break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: mii = GET_MII(sc); if (mii == NULL) { error = EINVAL; } else { error = ifmedia_ioctl (ifp, (void *)data, &mii->mii_media, cmd); } break; default: error = ether_ioctl(ifp, cmd, data); break; } mtx_unlock(&(sc->sc_mtx)); return (error); } static void udav_watchdog(void *arg) { struct udav_softc *sc = arg; mtx_assert(&(sc->sc_mtx), MA_OWNED); usbd_config_td_queue_command (&(sc->sc_config_td), NULL, &udav_cfg_tick, 0, 0); usb_callout_reset(&(sc->sc_watchdog), hz, &udav_watchdog, sc); mtx_unlock(&(sc->sc_mtx)); return; } /* * NOTE: can be called when "ifp" is NULL */ static void udav_cfg_pre_stop(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; if (cc) { /* copy the needed configuration */ udav_config_copy(sc, cc, refcount); } /* immediate configuration */ if (ifp) { /* clear flags */ ifp->if_drv_flags &= ~IFF_DRV_RUNNING; } sc->sc_flags &= ~(UDAV_FLAG_HL_READY | UDAV_FLAG_LL_READY); sc->sc_flags |= UDAV_FLAG_WAIT_LINK; /* * stop all the transfers, if not already stopped: */ usbd_transfer_stop(sc->sc_xfer[0]); usbd_transfer_stop(sc->sc_xfer[1]); usbd_transfer_stop(sc->sc_xfer[2]); usbd_transfer_stop(sc->sc_xfer[3]); usbd_transfer_stop(sc->sc_xfer[4]); usbd_transfer_stop(sc->sc_xfer[5]); return; } /* * NOTE: can be called when "ifp" is NULL */ static void udav_cfg_stop(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { udav_cfg_reset(sc); return; } static int udav_ifmedia_change_cb(struct ifnet *ifp) { struct udav_softc *sc = ifp->if_softc; mtx_lock(&(sc->sc_mtx)); usbd_config_td_queue_command (&(sc->sc_config_td), NULL, &udav_cfg_ifmedia_change, 0, 0); mtx_unlock(&(sc->sc_mtx)); return (0); } static void udav_cfg_ifmedia_change(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; struct mii_data *mii = GET_MII(sc); if ((ifp == NULL) || (mii == NULL)) { /* not ready */ return; } sc->sc_flags |= UDAV_FLAG_WAIT_LINK; if (mii->mii_instance) { struct mii_softc *miisc; LIST_FOREACH(miisc, &mii->mii_phys, mii_list) { mii_phy_reset(miisc); } } mii_mediachg(mii); return; } static void udav_ifmedia_status_cb(struct ifnet *ifp, struct ifmediareq *ifmr) { struct udav_softc *sc = ifp->if_softc; mtx_lock(&(sc->sc_mtx)); if (ifp->if_drv_flags & IFF_DRV_RUNNING) { ifmr->ifm_active = sc->sc_media_active; ifmr->ifm_status = sc->sc_media_status; } else { ifmr->ifm_active = IFM_ETHER | IFM_NONE; ifmr->ifm_status = 0; } mtx_unlock(&(sc->sc_mtx)); return; } static void udav_cfg_tick(struct udav_softc *sc, struct udav_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; struct mii_data *mii = GET_MII(sc); if ((ifp == NULL) || (mii == NULL)) { /* not ready */ return; } mii_tick(mii); mii_pollstat(mii); if ((sc->sc_flags & UDAV_FLAG_WAIT_LINK) && (mii->mii_media_status & IFM_ACTIVE) && (IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE)) { sc->sc_flags &= ~UDAV_FLAG_WAIT_LINK; } sc->sc_media_active = mii->mii_media_active; sc->sc_media_status = mii->mii_media_status; /* start stopped transfers, if any */ udav_start_transfers(sc); return; } static int udav_cfg_miibus_readreg(device_t dev, int phy, int reg) { struct udav_softc *sc = device_get_softc(dev); uint8_t val[2]; uint16_t data16; /* XXX: one PHY only for the internal PHY */ if (phy != 0) { return (0); } mtx_lock(&(sc->sc_mtx)); /* XXX */ /* select internal PHY and set PHY register address */ udav_cfg_csr_write1(sc, UDAV_EPAR, UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); /* select PHY operation and start read command */ udav_cfg_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); /* XXX: should we wait? */ /* end read command */ UDAV_CFG_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); /* retrieve the result from data registers */ udav_cfg_csr_read(sc, UDAV_EPDRL, val, 2); mtx_unlock(&(sc->sc_mtx)); /* XXX */ data16 = (val[0] | (val[1] << 8)); DPRINTF(sc, 10, "phy=%d reg=0x%04x => 0x%04x\n", phy, reg, data16); return (data16); } static int udav_cfg_miibus_writereg(device_t dev, int phy, int reg, int data) { struct udav_softc *sc = device_get_softc(dev); uint8_t val[2]; /* XXX: one PHY only for the internal PHY */ if (phy != 0) { return (0); } mtx_lock(&(sc->sc_mtx)); /* XXX */ /* select internal PHY and set PHY register address */ udav_cfg_csr_write1(sc, UDAV_EPAR, UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); /* put the value to the data registers */ val[0] = (data & 0xff); val[1] = (data >> 8) & 0xff; udav_cfg_csr_write(sc, UDAV_EPDRL, val, 2); /* select PHY operation and start write command */ udav_cfg_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); /* XXX: should we wait? */ /* end write command */ UDAV_CFG_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); mtx_unlock(&(sc->sc_mtx)); /* XXX */ return (0); } static void udav_cfg_miibus_statchg(device_t dev) { /* nothing to do */ return; } /* * Stop all chip I/O so that the kernel's probe routines don't * get confused by errant DMAs when rebooting. */ static int udav_shutdown(device_t dev) { struct udav_softc *sc = device_get_softc(dev); mtx_lock(&(sc->sc_mtx)); usbd_config_td_queue_command (&(sc->sc_config_td), &udav_cfg_pre_stop, &udav_cfg_stop, 0, 0); mtx_unlock(&(sc->sc_mtx)); return (0); }