diff options
Diffstat (limited to 'sys/dev/usb/net/if_axe.c')
| -rw-r--r-- | sys/dev/usb/net/if_axe.c | 1076 |
1 files changed, 1076 insertions, 0 deletions
diff --git a/sys/dev/usb/net/if_axe.c b/sys/dev/usb/net/if_axe.c new file mode 100644 index 0000000..0555e69 --- /dev/null +++ b/sys/dev/usb/net/if_axe.c @@ -0,0 +1,1076 @@ +/*- + * Copyright (c) 1997, 1998, 1999, 2000-2003 + * Bill Paul <wpaul@windriver.com>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Bill Paul. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * ASIX Electronics AX88172/AX88178/AX88778 USB 2.0 ethernet driver. + * Used in the LinkSys USB200M and various other adapters. + * + * Manuals available from: + * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF + * Note: you need the manual for the AX88170 chip (USB 1.x ethernet + * controller) to find the definitions for the RX control register. + * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF + * + * Written by Bill Paul <wpaul@windriver.com> + * Senior Engineer + * Wind River Systems + */ + +/* + * The AX88172 provides USB ethernet supports at 10 and 100Mbps. + * It uses an external PHY (reference designs use a RealTek chip), + * and has a 64-bit multicast hash filter. There is some information + * missing from the manual which one needs to know in order to make + * the chip function: + * + * - You must set bit 7 in the RX control register, otherwise the + * chip won't receive any packets. + * - You must initialize all 3 IPG registers, or you won't be able + * to send any packets. + * + * Note that this device appears to only support loading the station + * address via autload from the EEPROM (i.e. there's no way to manaully + * set it). + * + * (Adam Weinberger wanted me to name this driver if_gir.c.) + */ + +/* + * Ax88178 and Ax88772 support backported from the OpenBSD driver. + * 2007/02/12, J.R. Oldroyd, fbsd@opal.com + * + * Manual here: + * http://www.asix.com.tw/FrootAttach/datasheet/AX88178_datasheet_Rev10.pdf + * http://www.asix.com.tw/FrootAttach/datasheet/AX88772_datasheet_Rev10.pdf + */ + +#include "usbdevs.h" +#include <dev/usb/usb.h> +#include <dev/usb/usb_mfunc.h> +#include <dev/usb/usb_error.h> + +#define USB_DEBUG_VAR axe_debug + +#include <dev/usb/usb_core.h> +#include <dev/usb/usb_lookup.h> +#include <dev/usb/usb_process.h> +#include <dev/usb/usb_debug.h> +#include <dev/usb/usb_request.h> +#include <dev/usb/usb_busdma.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/net/usb_ethernet.h> +#include <dev/usb/net/if_axereg.h> + +/* + * AXE_178_MAX_FRAME_BURST + * max frame burst size for Ax88178 and Ax88772 + * 0 2048 bytes + * 1 4096 bytes + * 2 8192 bytes + * 3 16384 bytes + * use the largest your system can handle without USB stalling. + * + * NB: 88772 parts appear to generate lots of input errors with + * a 2K rx buffer and 8K is only slightly faster than 4K on an + * EHCI port on a T42 so change at your own risk. + */ +#define AXE_178_MAX_FRAME_BURST 1 + +#if USB_DEBUG +static int axe_debug = 0; + +SYSCTL_NODE(_hw_usb2, OID_AUTO, axe, CTLFLAG_RW, 0, "USB axe"); +SYSCTL_INT(_hw_usb2_axe, OID_AUTO, debug, CTLFLAG_RW, &axe_debug, 0, + "Debug level"); +#endif + +/* + * Various supported device vendors/products. + */ +static const struct usb2_device_id axe_devs[] = { + {USB_VPI(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UF200, 0)}, + {USB_VPI(USB_VENDOR_ACERCM, USB_PRODUCT_ACERCM_EP1427X2, 0)}, + {USB_VPI(USB_VENDOR_APPLE, USB_PRODUCT_APPLE_ETHERNET, AXE_FLAG_772)}, + {USB_VPI(USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172, 0)}, + {USB_VPI(USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178, AXE_FLAG_178)}, + {USB_VPI(USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88772, AXE_FLAG_772)}, + {USB_VPI(USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC210T, 0)}, + {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D5055, AXE_FLAG_178)}, + {USB_VPI(USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB2AR, 0)}, + {USB_VPI(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_USB200MV2, AXE_FLAG_772)}, + {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX, 0)}, + {USB_VPI(USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100, 0)}, + {USB_VPI(USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100B1, AXE_FLAG_772)}, + {USB_VPI(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_GWUSB2E, 0)}, + {USB_VPI(USB_VENDOR_IODATA, USB_PRODUCT_IODATA_ETGUS2, AXE_FLAG_178)}, + {USB_VPI(USB_VENDOR_JVC, USB_PRODUCT_JVC_MP_PRX1, 0)}, + {USB_VPI(USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M, 0)}, + {USB_VPI(USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_USB1000, AXE_FLAG_178)}, + {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX, 0)}, + {USB_VPI(USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120, 0)}, + {USB_VPI(USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01PLUS, AXE_FLAG_772)}, + {USB_VPI(USB_VENDOR_PLANEX3, USB_PRODUCT_PLANEX3_GU1000T, AXE_FLAG_178)}, + {USB_VPI(USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029, 0)}, + {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN028, AXE_FLAG_178)}, + {USB_VPI(USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL, 0)}, +}; + +static device_probe_t axe_probe; +static device_attach_t axe_attach; +static device_detach_t axe_detach; +static device_shutdown_t axe_shutdown; + +static usb2_callback_t axe_intr_callback; +static usb2_callback_t axe_bulk_read_callback; +static usb2_callback_t axe_bulk_write_callback; + +static miibus_readreg_t axe_miibus_readreg; +static miibus_writereg_t axe_miibus_writereg; +static miibus_statchg_t axe_miibus_statchg; + +static usb2_ether_fn_t axe_attach_post; +static usb2_ether_fn_t axe_init; +static usb2_ether_fn_t axe_stop; +static usb2_ether_fn_t axe_start; +static usb2_ether_fn_t axe_tick; +static usb2_ether_fn_t axe_setmulti; +static usb2_ether_fn_t axe_setpromisc; + +static int axe_ifmedia_upd(struct ifnet *); +static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *); +static int axe_cmd(struct axe_softc *, int, int, int, void *); +static void axe_ax88178_init(struct axe_softc *); +static void axe_ax88772_init(struct axe_softc *); +static int axe_get_phyno(struct axe_softc *, int); + +static const struct usb2_config axe_config[AXE_N_TRANSFER] = { + + [AXE_BULK_DT_WR] = { + .type = UE_BULK, + .endpoint = UE_ADDR_ANY, + .direction = UE_DIR_OUT, + .mh.bufsize = AXE_BULK_BUF_SIZE, + .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,}, + .mh.callback = axe_bulk_write_callback, + .mh.timeout = 10000, /* 10 seconds */ + }, + + [AXE_BULK_DT_RD] = { + .type = UE_BULK, + .endpoint = UE_ADDR_ANY, + .direction = UE_DIR_IN, +#if (MCLBYTES < 2048) +#error "(MCLBYTES < 2048)" +#endif + .mh.bufsize = MCLBYTES, + .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, + .mh.callback = axe_bulk_read_callback, + .mh.timeout = 0, /* no timeout */ + }, + + [AXE_INTR_DT_RD] = { + .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 = axe_intr_callback, + }, +}; + +static device_method_t axe_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, axe_probe), + DEVMETHOD(device_attach, axe_attach), + DEVMETHOD(device_detach, axe_detach), + DEVMETHOD(device_shutdown, axe_shutdown), + + /* bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + + /* MII interface */ + DEVMETHOD(miibus_readreg, axe_miibus_readreg), + DEVMETHOD(miibus_writereg, axe_miibus_writereg), + DEVMETHOD(miibus_statchg, axe_miibus_statchg), + + {0, 0} +}; + +static driver_t axe_driver = { + .name = "axe", + .methods = axe_methods, + .size = sizeof(struct axe_softc), +}; + +static devclass_t axe_devclass; + +DRIVER_MODULE(axe, ushub, axe_driver, axe_devclass, NULL, 0); +DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, 0, 0); +MODULE_DEPEND(axe, uether, 1, 1, 1); +MODULE_DEPEND(axe, usb, 1, 1, 1); +MODULE_DEPEND(axe, ether, 1, 1, 1); +MODULE_DEPEND(axe, miibus, 1, 1, 1); + +static const struct usb2_ether_methods axe_ue_methods = { + .ue_attach_post = axe_attach_post, + .ue_start = axe_start, + .ue_init = axe_init, + .ue_stop = axe_stop, + .ue_tick = axe_tick, + .ue_setmulti = axe_setmulti, + .ue_setpromisc = axe_setpromisc, + .ue_mii_upd = axe_ifmedia_upd, + .ue_mii_sts = axe_ifmedia_sts, +}; + +static int +axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) +{ + struct usb2_device_request req; + usb2_error_t err; + + AXE_LOCK_ASSERT(sc, MA_OWNED); + + req.bmRequestType = (AXE_CMD_IS_WRITE(cmd) ? + UT_WRITE_VENDOR_DEVICE : + UT_READ_VENDOR_DEVICE); + req.bRequest = AXE_CMD_CMD(cmd); + USETW(req.wValue, val); + USETW(req.wIndex, index); + USETW(req.wLength, AXE_CMD_LEN(cmd)); + + err = usb2_ether_do_request(&sc->sc_ue, &req, buf, 1000); + + return (err); +} + +static int +axe_miibus_readreg(device_t dev, int phy, int reg) +{ + struct axe_softc *sc = device_get_softc(dev); + uint16_t val; + int locked; + + if (sc->sc_phyno != phy) + return (0); + + locked = mtx_owned(&sc->sc_mtx); + if (!locked) + AXE_LOCK(sc); + + axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); + axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, &val); + axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); + + val = le16toh(val); + if ((sc->sc_flags & AXE_FLAG_772) != 0 && reg == MII_BMSR) { + /* + * BMSR of AX88772 indicates that it supports extended + * capability but the extended status register is + * revered for embedded ethernet PHY. So clear the + * extended capability bit of BMSR. + */ + val &= ~BMSR_EXTCAP; + } + + if (!locked) + AXE_UNLOCK(sc); + return (val); +} + +static int +axe_miibus_writereg(device_t dev, int phy, int reg, int val) +{ + struct axe_softc *sc = device_get_softc(dev); + int locked; + + val = htole16(val); + + if (sc->sc_phyno != phy) + return (0); + + locked = mtx_owned(&sc->sc_mtx); + if (!locked) + AXE_LOCK(sc); + + axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); + axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, &val); + axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); + + if (!locked) + AXE_UNLOCK(sc); + return (0); +} + +static void +axe_miibus_statchg(device_t dev) +{ + struct axe_softc *sc = device_get_softc(dev); + struct mii_data *mii = GET_MII(sc); + struct ifnet *ifp; + uint16_t val; + int err, locked; + + locked = mtx_owned(&sc->sc_mtx); + if (!locked) + AXE_LOCK(sc); + + ifp = usb2_ether_getifp(&sc->sc_ue); + if (mii == NULL || ifp == NULL || + (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) + goto done; + + sc->sc_flags &= ~AXE_FLAG_LINK; + if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == + (IFM_ACTIVE | IFM_AVALID)) { + switch (IFM_SUBTYPE(mii->mii_media_active)) { + case IFM_10_T: + case IFM_100_TX: + sc->sc_flags |= AXE_FLAG_LINK; + break; + case IFM_1000_T: + if ((sc->sc_flags & AXE_FLAG_178) == 0) + break; + sc->sc_flags |= AXE_FLAG_LINK; + break; + default: + break; + } + } + + /* Lost link, do nothing. */ + if ((sc->sc_flags & AXE_FLAG_LINK) == 0) + goto done; + + val = 0; + if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) + val |= AXE_MEDIA_FULL_DUPLEX; + if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) { + val |= AXE_178_MEDIA_RX_EN | AXE_178_MEDIA_MAGIC; + if ((sc->sc_flags & AXE_FLAG_178) != 0) + val |= AXE_178_MEDIA_ENCK; + switch (IFM_SUBTYPE(mii->mii_media_active)) { + case IFM_1000_T: + val |= AXE_178_MEDIA_GMII | AXE_178_MEDIA_ENCK; + break; + case IFM_100_TX: + val |= AXE_178_MEDIA_100TX; + break; + case IFM_10_T: + /* doesn't need to be handled */ + break; + } + } + err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); + if (err) + device_printf(dev, "media change failed, error %d\n", err); +done: + if (!locked) + AXE_UNLOCK(sc); +} + +/* + * Set media options. + */ +static int +axe_ifmedia_upd(struct ifnet *ifp) +{ + struct axe_softc *sc = ifp->if_softc; + struct mii_data *mii = GET_MII(sc); + int error; + + AXE_LOCK_ASSERT(sc, MA_OWNED); + + if (mii->mii_instance) { + struct mii_softc *miisc; + + LIST_FOREACH(miisc, &mii->mii_phys, mii_list) + mii_phy_reset(miisc); + } + error = mii_mediachg(mii); + return (error); +} + +/* + * Report current media status. + */ +static void +axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) +{ + struct axe_softc *sc = ifp->if_softc; + struct mii_data *mii = GET_MII(sc); + + AXE_LOCK(sc); + mii_pollstat(mii); + AXE_UNLOCK(sc); + ifmr->ifm_active = mii->mii_media_active; + ifmr->ifm_status = mii->mii_media_status; +} + +static void +axe_setmulti(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + struct ifmultiaddr *ifma; + uint32_t h = 0; + uint16_t rxmode; + uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; + + AXE_LOCK_ASSERT(sc, MA_OWNED); + + axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, &rxmode); + rxmode = le16toh(rxmode); + + if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { + rxmode |= AXE_RXCMD_ALLMULTI; + axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); + return; + } + rxmode &= ~AXE_RXCMD_ALLMULTI; + + IF_ADDR_LOCK(ifp); + TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) + { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = ether_crc32_be(LLADDR((struct sockaddr_dl *) + ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; + hashtbl[h / 8] |= 1 << (h % 8); + } + IF_ADDR_UNLOCK(ifp); + + axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); + axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); +} + +static int +axe_get_phyno(struct axe_softc *sc, int sel) +{ + int phyno; + + switch (AXE_PHY_TYPE(sc->sc_phyaddrs[sel])) { + case PHY_TYPE_100_HOME: + case PHY_TYPE_GIG: + phyno = AXE_PHY_NO(sc->sc_phyaddrs[sel]); + break; + case PHY_TYPE_SPECIAL: + /* FALLTHROUGH */ + case PHY_TYPE_RSVD: + /* FALLTHROUGH */ + case PHY_TYPE_NON_SUP: + /* FALLTHROUGH */ + default: + phyno = -1; + break; + } + + return (phyno); +} + +static void +axe_ax88178_init(struct axe_softc *sc) +{ + int gpio0 = 0, phymode = 0; + uint16_t eeprom; + + axe_cmd(sc, AXE_CMD_SROM_WR_ENABLE, 0, 0, NULL); + /* XXX magic */ + axe_cmd(sc, AXE_CMD_SROM_READ, 0, 0x0017, &eeprom); + eeprom = le16toh(eeprom); + axe_cmd(sc, AXE_CMD_SROM_WR_DISABLE, 0, 0, NULL); + + /* if EEPROM is invalid we have to use to GPIO0 */ + if (eeprom == 0xffff) { + phymode = 0; + gpio0 = 1; + } else { + phymode = eeprom & 7; + gpio0 = (eeprom & 0x80) ? 0 : 1; + } + + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x008c, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 16); + + if ((eeprom >> 8) != 0x01) { + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 32); + + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x001c, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 3); + + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 32); + } else { + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x0004, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 32); + + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x000c, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 32); + } + + /* soft reset */ + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 4); + + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, + AXE_SW_RESET_PRL | AXE_178_RESET_MAGIC, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 4); + /* Enable MII/GMII/RGMII interface to work with external PHY. */ + axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 4); + + axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); +} + +static void +axe_ax88772_init(struct axe_softc *sc) +{ + axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x00b0, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 16); + + if (sc->sc_phyno == AXE_772_PHY_NO_EPHY) { + /* ask for the embedded PHY */ + axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x01, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 64); + + /* power down and reset state, pin reset state */ + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, + AXE_SW_RESET_CLEAR, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 16); + + /* power down/reset state, pin operating state */ + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, + AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 4); + + /* power up, reset */ + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_PRL, NULL); + + /* power up, operating */ + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, + AXE_SW_RESET_IPRL | AXE_SW_RESET_PRL, NULL); + } else { + /* ask for external PHY */ + axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x00, NULL); + usb2_ether_pause(&sc->sc_ue, hz / 64); + + /* power down internal PHY */ + axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, + AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); + } + + usb2_ether_pause(&sc->sc_ue, hz / 4); + axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); +} + +static void +axe_reset(struct axe_softc *sc) +{ + struct usb2_config_descriptor *cd; + usb2_error_t err; + + cd = usb2_get_config_descriptor(sc->sc_ue.ue_udev); + + err = usb2_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx, + cd->bConfigurationValue); + if (err) + DPRINTF("reset failed (ignored)\n"); + + /* Wait a little while for the chip to get its brains in order. */ + usb2_ether_pause(&sc->sc_ue, hz / 100); +} + +static void +axe_attach_post(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + + /* + * Load PHY indexes first. Needed by axe_xxx_init(). + */ + axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, sc->sc_phyaddrs); +#if 1 + device_printf(sc->sc_ue.ue_dev, "PHYADDR 0x%02x:0x%02x\n", + sc->sc_phyaddrs[0], sc->sc_phyaddrs[1]); +#endif + sc->sc_phyno = axe_get_phyno(sc, AXE_PHY_SEL_PRI); + if (sc->sc_phyno == -1) + sc->sc_phyno = axe_get_phyno(sc, AXE_PHY_SEL_SEC); + if (sc->sc_phyno == -1) { + device_printf(sc->sc_ue.ue_dev, + "no valid PHY address found, assuming PHY address 0\n"); + sc->sc_phyno = 0; + } + + if (sc->sc_flags & AXE_FLAG_178) + axe_ax88178_init(sc); + else if (sc->sc_flags & AXE_FLAG_772) + axe_ax88772_init(sc); + + /* + * Get station address. + */ + if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) + axe_cmd(sc, AXE_178_CMD_READ_NODEID, 0, 0, ue->ue_eaddr); + else + axe_cmd(sc, AXE_172_CMD_READ_NODEID, 0, 0, ue->ue_eaddr); + + /* + * Fetch IPG values. + */ + axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, sc->sc_ipgs); +} + +/* + * Probe for a AX88172 chip. + */ +static int +axe_probe(device_t dev) +{ + struct usb2_attach_arg *uaa = device_get_ivars(dev); + + if (uaa->usb2_mode != USB_MODE_HOST) + return (ENXIO); + if (uaa->info.bConfigIndex != AXE_CONFIG_IDX) + return (ENXIO); + if (uaa->info.bIfaceIndex != AXE_IFACE_IDX) + return (ENXIO); + + return (usb2_lookup_id_by_uaa(axe_devs, sizeof(axe_devs), uaa)); +} + +/* + * Attach the interface. Allocate softc structures, do ifmedia + * setup and ethernet/BPF attach. + */ +static int +axe_attach(device_t dev) +{ + struct usb2_attach_arg *uaa = device_get_ivars(dev); + struct axe_softc *sc = device_get_softc(dev); + struct usb2_ether *ue = &sc->sc_ue; + uint8_t iface_index; + int error; + + sc->sc_flags = USB_GET_DRIVER_INFO(uaa); + + device_set_usb2_desc(dev); + + mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); + + iface_index = AXE_IFACE_IDX; + error = usb2_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, + axe_config, AXE_N_TRANSFER, sc, &sc->sc_mtx); + if (error) { + device_printf(dev, "allocating USB transfers failed!\n"); + goto detach; + } + + ue->ue_sc = sc; + ue->ue_dev = dev; + ue->ue_udev = uaa->device; + ue->ue_mtx = &sc->sc_mtx; + ue->ue_methods = &axe_ue_methods; + + error = usb2_ether_ifattach(ue); + if (error) { + device_printf(dev, "could not attach interface\n"); + goto detach; + } + return (0); /* success */ + +detach: + axe_detach(dev); + return (ENXIO); /* failure */ +} + +static int +axe_detach(device_t dev) +{ + struct axe_softc *sc = device_get_softc(dev); + struct usb2_ether *ue = &sc->sc_ue; + + usb2_transfer_unsetup(sc->sc_xfer, AXE_N_TRANSFER); + usb2_ether_ifdetach(ue); + mtx_destroy(&sc->sc_mtx); + + return (0); +} + +static void +axe_intr_callback(struct usb2_xfer *xfer) +{ + switch (USB_GET_STATE(xfer)) { + case USB_ST_TRANSFERRED: + case USB_ST_SETUP: +tr_setup: + xfer->frlengths[0] = xfer->max_data_length; + usb2_start_hardware(xfer); + return; + + default: /* Error */ + if (xfer->error != USB_ERR_CANCELLED) { + /* try to clear stall first */ + xfer->flags.stall_pipe = 1; + goto tr_setup; + } + return; + } +} + +#if (AXE_BULK_BUF_SIZE >= 0x10000) +#error "Please update axe_bulk_read_callback()!" +#endif + +static void +axe_bulk_read_callback(struct usb2_xfer *xfer) +{ + struct axe_softc *sc = xfer->priv_sc; + struct usb2_ether *ue = &sc->sc_ue; + struct ifnet *ifp = usb2_ether_getifp(ue); + struct axe_sframe_hdr hdr; + int error, pos, len, adjust; + + switch (USB_GET_STATE(xfer)) { + case USB_ST_TRANSFERRED: + pos = 0; + while (1) { + if (sc->sc_flags & (AXE_FLAG_772 | AXE_FLAG_178)) { + if (xfer->actlen < sizeof(hdr)) { + /* too little data */ + break; + } + usb2_copy_out(xfer->frbuffers, pos, &hdr, sizeof(hdr)); + + if ((hdr.len ^ hdr.ilen) != 0xFFFF) { + /* we lost sync */ + break; + } + xfer->actlen -= sizeof(hdr); + pos += sizeof(hdr); + + len = le16toh(hdr.len); + if (len > xfer->actlen) { + /* invalid length */ + break; + } + adjust = (len & 1); + + } else { + len = xfer->actlen; + adjust = 0; + } + error = usb2_ether_rxbuf(ue, xfer->frbuffers, pos, len); + if (error) + break; + + pos += len; + xfer->actlen -= len; + + if (xfer->actlen <= adjust) { + /* we are finished */ + goto tr_setup; + } + pos += adjust; + xfer->actlen -= adjust; + } + + /* count an error */ + ifp->if_ierrors++; + + /* FALLTHROUGH */ + case USB_ST_SETUP: +tr_setup: + xfer->frlengths[0] = xfer->max_data_length; + usb2_start_hardware(xfer); + usb2_ether_rxflush(ue); + return; + + default: /* Error */ + DPRINTF("bulk read error, %s\n", + usb2_errstr(xfer->error)); + + if (xfer->error != USB_ERR_CANCELLED) { + /* try to clear stall first */ + xfer->flags.stall_pipe = 1; + goto tr_setup; + } + return; + + } +} + +#if ((AXE_BULK_BUF_SIZE >= 0x10000) || (AXE_BULK_BUF_SIZE < (MCLBYTES+4))) +#error "Please update axe_bulk_write_callback()!" +#endif + +static void +axe_bulk_write_callback(struct usb2_xfer *xfer) +{ + struct axe_softc *sc = xfer->priv_sc; + struct axe_sframe_hdr hdr; + struct ifnet *ifp = usb2_ether_getifp(&sc->sc_ue); + struct mbuf *m; + int pos; + + switch (USB_GET_STATE(xfer)) { + case USB_ST_TRANSFERRED: + DPRINTFN(11, "transfer complete\n"); + ifp->if_opackets++; + /* FALLTHROUGH */ + case USB_ST_SETUP: +tr_setup: + if ((sc->sc_flags & AXE_FLAG_LINK) == 0) { + /* + * don't send anything if there is no link ! + */ + return; + } + pos = 0; + + while (1) { + + IFQ_DRV_DEQUEUE(&ifp->if_snd, m); + + if (m == NULL) { + if (pos > 0) + break; /* send out data */ + return; + } + if (m->m_pkthdr.len > MCLBYTES) { + m->m_pkthdr.len = MCLBYTES; + } + if (sc->sc_flags & (AXE_FLAG_772 | AXE_FLAG_178)) { + + hdr.len = htole16(m->m_pkthdr.len); + hdr.ilen = ~hdr.len; + + usb2_copy_in(xfer->frbuffers, pos, &hdr, sizeof(hdr)); + + pos += sizeof(hdr); + + /* + * NOTE: Some drivers force a short packet + * by appending a dummy header with zero + * length at then end of the USB transfer. + * This driver uses the + * USB_FORCE_SHORT_XFER flag instead. + */ + } + usb2_m_copy_in(xfer->frbuffers, pos, + m, 0, m->m_pkthdr.len); + + pos += m->m_pkthdr.len; + + /* + * if there's a BPF listener, bounce a copy + * of this frame to him: + */ + BPF_MTAP(ifp, m); + + m_freem(m); + + if (sc->sc_flags & (AXE_FLAG_772 | AXE_FLAG_178)) { + if (pos > (AXE_BULK_BUF_SIZE - MCLBYTES - sizeof(hdr))) { + /* send out frame(s) */ + break; + } + } else { + /* send out frame */ + break; + } + } + + xfer->frlengths[0] = pos; + usb2_start_hardware(xfer); + return; + + default: /* Error */ + DPRINTFN(11, "transfer error, %s\n", + usb2_errstr(xfer->error)); + + ifp->if_oerrors++; + + if (xfer->error != USB_ERR_CANCELLED) { + /* try to clear stall first */ + xfer->flags.stall_pipe = 1; + goto tr_setup; + } + return; + + } +} + +static void +axe_tick(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + struct mii_data *mii = GET_MII(sc); + + AXE_LOCK_ASSERT(sc, MA_OWNED); + + mii_tick(mii); + if ((sc->sc_flags & AXE_FLAG_LINK) == 0) { + axe_miibus_statchg(ue->ue_dev); + if ((sc->sc_flags & AXE_FLAG_LINK) != 0) + axe_start(ue); + } +} + +static void +axe_start(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + + /* + * start the USB transfers, if not already started: + */ + usb2_transfer_start(sc->sc_xfer[AXE_INTR_DT_RD]); + usb2_transfer_start(sc->sc_xfer[AXE_BULK_DT_RD]); + usb2_transfer_start(sc->sc_xfer[AXE_BULK_DT_WR]); +} + +static void +axe_init(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + uint16_t rxmode; + + AXE_LOCK_ASSERT(sc, MA_OWNED); + + /* Cancel pending I/O */ + axe_stop(ue); + +#ifdef notdef + /* Set MAC address */ + axe_mac(sc, IF_LLADDR(ifp), 1); +#endif + + /* Set transmitter IPG values */ + if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) { + axe_cmd(sc, AXE_178_CMD_WRITE_IPG012, sc->sc_ipgs[2], + (sc->sc_ipgs[1] << 8) | (sc->sc_ipgs[0]), NULL); + } else { + axe_cmd(sc, AXE_172_CMD_WRITE_IPG0, 0, sc->sc_ipgs[0], NULL); + axe_cmd(sc, AXE_172_CMD_WRITE_IPG1, 0, sc->sc_ipgs[1], NULL); + axe_cmd(sc, AXE_172_CMD_WRITE_IPG2, 0, sc->sc_ipgs[2], NULL); + } + + /* Enable receiver, set RX mode */ + rxmode = (AXE_RXCMD_MULTICAST | AXE_RXCMD_ENABLE); + if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) { + rxmode |= AXE_178_RXCMD_MFB_2048; /* chip default */ + } else { + rxmode |= AXE_172_RXCMD_UNICAST; + } + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + rxmode |= AXE_RXCMD_PROMISC; + + if (ifp->if_flags & IFF_BROADCAST) + rxmode |= AXE_RXCMD_BROADCAST; + + axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); + + /* Load the multicast filter. */ + axe_setmulti(ue); + + usb2_transfer_set_stall(sc->sc_xfer[AXE_BULK_DT_WR]); + + ifp->if_drv_flags |= IFF_DRV_RUNNING; + axe_start(ue); +} + +static void +axe_setpromisc(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + uint16_t rxmode; + + axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, &rxmode); + + rxmode = le16toh(rxmode); + + if (ifp->if_flags & IFF_PROMISC) { + rxmode |= AXE_RXCMD_PROMISC; + } else { + rxmode &= ~AXE_RXCMD_PROMISC; + } + + axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); + + axe_setmulti(ue); +} + +static void +axe_stop(struct usb2_ether *ue) +{ + struct axe_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + + AXE_LOCK_ASSERT(sc, MA_OWNED); + + ifp->if_drv_flags &= ~IFF_DRV_RUNNING; + sc->sc_flags &= ~AXE_FLAG_LINK; + + /* + * stop all the transfers, if not already stopped: + */ + usb2_transfer_stop(sc->sc_xfer[AXE_BULK_DT_WR]); + usb2_transfer_stop(sc->sc_xfer[AXE_BULK_DT_RD]); + usb2_transfer_stop(sc->sc_xfer[AXE_INTR_DT_RD]); + + axe_reset(sc); +} + +/* + * Stop all chip I/O so that the kernel's probe routines don't + * get confused by errant DMAs when rebooting. + */ +static int +axe_shutdown(device_t dev) +{ + struct axe_softc *sc = device_get_softc(dev); + + usb2_ether_ifshutdown(&sc->sc_ue); + + return (0); +} |
