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| Current File : //usr/src/sys/dev/usb/net/if_aue.c |
/*-
* Copyright (c) 1997, 1998, 1999, 2000
* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
*
* Copyright (c) 2006
* Alfred Perlstein <alfred@FreeBSD.org>. 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: release/9.1.0/sys/dev/usb/net/if_aue.c 235000 2012-05-04 15:05:30Z hselasky $");
/*
* ADMtek AN986 Pegasus and AN8511 Pegasus II USB to ethernet driver.
* Datasheet is available from http://www.admtek.com.tw.
*
* Written by Bill Paul <wpaul@ee.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*
* SMP locking by Alfred Perlstein <alfred@FreeBSD.org>.
* RED Inc.
*/
/*
* The Pegasus chip uses four USB "endpoints" to provide 10/100 ethernet
* support: the control endpoint for reading/writing registers, burst
* read endpoint for packet reception, burst write for packet transmission
* and one for "interrupts." The chip uses the same RX filter scheme
* as the other ADMtek ethernet parts: one perfect filter entry for the
* the station address and a 64-bit multicast hash table. The chip supports
* both MII and HomePNA attachments.
*
* Since the maximum data transfer speed of USB is supposed to be 12Mbps,
* you're never really going to get 100Mbps speeds from this device. I
* think the idea is to allow the device to connect to 10 or 100Mbps
* networks, not necessarily to provide 100Mbps performance. Also, since
* the controller uses an external PHY chip, it's possible that board
* designers might simply choose a 10Mbps PHY.
*
* Registers are accessed using uether_do_request(). Packet
* transfers are done using usbd_transfer() and friends.
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR aue_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/net/usb_ethernet.h>
#include <dev/usb/net/if_auereg.h>
#ifdef USB_DEBUG
static int aue_debug = 0;
SYSCTL_NODE(_hw_usb, OID_AUTO, aue, CTLFLAG_RW, 0, "USB aue");
SYSCTL_INT(_hw_usb_aue, OID_AUTO, debug, CTLFLAG_RW, &aue_debug, 0,
"Debug level");
#endif
/*
* Various supported device vendors/products.
*/
static const STRUCT_USB_HOST_ID aue_devs[] = {
#define AUE_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
AUE_DEV(3COM, 3C460B, AUE_FLAG_PII),
AUE_DEV(ABOCOM, DSB650TX_PNA, 0),
AUE_DEV(ABOCOM, UFE1000, AUE_FLAG_LSYS),
AUE_DEV(ABOCOM, XX10, 0),
AUE_DEV(ABOCOM, XX1, AUE_FLAG_PNA | AUE_FLAG_PII),
AUE_DEV(ABOCOM, XX2, AUE_FLAG_PII),
AUE_DEV(ABOCOM, XX4, AUE_FLAG_PNA),
AUE_DEV(ABOCOM, XX5, AUE_FLAG_PNA),
AUE_DEV(ABOCOM, XX6, AUE_FLAG_PII),
AUE_DEV(ABOCOM, XX7, AUE_FLAG_PII),
AUE_DEV(ABOCOM, XX8, AUE_FLAG_PII),
AUE_DEV(ABOCOM, XX9, AUE_FLAG_PNA),
AUE_DEV(ACCTON, SS1001, AUE_FLAG_PII),
AUE_DEV(ACCTON, USB320_EC, 0),
AUE_DEV(ADMTEK, PEGASUSII_2, AUE_FLAG_PII),
AUE_DEV(ADMTEK, PEGASUSII_3, AUE_FLAG_PII),
AUE_DEV(ADMTEK, PEGASUSII_4, AUE_FLAG_PII),
AUE_DEV(ADMTEK, PEGASUSII, AUE_FLAG_PII),
AUE_DEV(ADMTEK, PEGASUS, AUE_FLAG_PNA | AUE_FLAG_DUAL_PHY),
AUE_DEV(AEI, FASTETHERNET, AUE_FLAG_PII),
AUE_DEV(ALLIEDTELESYN, ATUSB100, AUE_FLAG_PII),
AUE_DEV(ATEN, UC110T, AUE_FLAG_PII),
AUE_DEV(BELKIN, USB2LAN, AUE_FLAG_PII),
AUE_DEV(BILLIONTON, USB100, 0),
AUE_DEV(BILLIONTON, USBE100, AUE_FLAG_PII),
AUE_DEV(BILLIONTON, USBEL100, 0),
AUE_DEV(BILLIONTON, USBLP100, AUE_FLAG_PNA),
AUE_DEV(COREGA, FETHER_USB_TXS, AUE_FLAG_PII),
AUE_DEV(COREGA, FETHER_USB_TX, 0),
AUE_DEV(DLINK, DSB650TX1, AUE_FLAG_LSYS),
AUE_DEV(DLINK, DSB650TX2, AUE_FLAG_LSYS | AUE_FLAG_PII),
AUE_DEV(DLINK, DSB650TX3, AUE_FLAG_LSYS | AUE_FLAG_PII),
AUE_DEV(DLINK, DSB650TX4, AUE_FLAG_LSYS | AUE_FLAG_PII),
AUE_DEV(DLINK, DSB650TX_PNA, AUE_FLAG_PNA),
AUE_DEV(DLINK, DSB650TX, AUE_FLAG_LSYS),
AUE_DEV(DLINK, DSB650, AUE_FLAG_LSYS),
AUE_DEV(ELCON, PLAN, AUE_FLAG_PNA | AUE_FLAG_PII),
AUE_DEV(ELECOM, LDUSB20, AUE_FLAG_PII),
AUE_DEV(ELECOM, LDUSBLTX, AUE_FLAG_PII),
AUE_DEV(ELECOM, LDUSBTX0, 0),
AUE_DEV(ELECOM, LDUSBTX1, AUE_FLAG_LSYS),
AUE_DEV(ELECOM, LDUSBTX2, 0),
AUE_DEV(ELECOM, LDUSBTX3, AUE_FLAG_LSYS),
AUE_DEV(ELSA, USB2ETHERNET, 0),
AUE_DEV(GIGABYTE, GNBR402W, 0),
AUE_DEV(HAWKING, UF100, AUE_FLAG_PII),
AUE_DEV(HP, HN210E, AUE_FLAG_PII),
AUE_DEV(IODATA, USBETTXS, AUE_FLAG_PII),
AUE_DEV(IODATA, USBETTX, 0),
AUE_DEV(KINGSTON, KNU101TX, 0),
AUE_DEV(LINKSYS, USB100H1, AUE_FLAG_LSYS | AUE_FLAG_PNA),
AUE_DEV(LINKSYS, USB100TX, AUE_FLAG_LSYS),
AUE_DEV(LINKSYS, USB10TA, AUE_FLAG_LSYS),
AUE_DEV(LINKSYS, USB10TX1, AUE_FLAG_LSYS | AUE_FLAG_PII),
AUE_DEV(LINKSYS, USB10TX2, AUE_FLAG_LSYS | AUE_FLAG_PII),
AUE_DEV(LINKSYS, USB10T, AUE_FLAG_LSYS),
AUE_DEV(MELCO, LUA2TX5, AUE_FLAG_PII),
AUE_DEV(MELCO, LUATX1, 0),
AUE_DEV(MELCO, LUATX5, 0),
AUE_DEV(MICROSOFT, MN110, AUE_FLAG_PII),
AUE_DEV(NETGEAR, FA101, AUE_FLAG_PII),
AUE_DEV(SIEMENS, SPEEDSTREAM, AUE_FLAG_PII),
AUE_DEV(SIIG2, USBTOETHER, AUE_FLAG_PII),
AUE_DEV(SMARTBRIDGES, SMARTNIC, AUE_FLAG_PII),
AUE_DEV(SMC, 2202USB, 0),
AUE_DEV(SMC, 2206USB, AUE_FLAG_PII),
AUE_DEV(SOHOWARE, NUB100, 0),
AUE_DEV(SOHOWARE, NUB110, AUE_FLAG_PII),
#undef AUE_DEV
};
/* prototypes */
static device_probe_t aue_probe;
static device_attach_t aue_attach;
static device_detach_t aue_detach;
static miibus_readreg_t aue_miibus_readreg;
static miibus_writereg_t aue_miibus_writereg;
static miibus_statchg_t aue_miibus_statchg;
static usb_callback_t aue_intr_callback;
static usb_callback_t aue_bulk_read_callback;
static usb_callback_t aue_bulk_write_callback;
static uether_fn_t aue_attach_post;
static uether_fn_t aue_init;
static uether_fn_t aue_stop;
static uether_fn_t aue_start;
static uether_fn_t aue_tick;
static uether_fn_t aue_setmulti;
static uether_fn_t aue_setpromisc;
static uint8_t aue_csr_read_1(struct aue_softc *, uint16_t);
static uint16_t aue_csr_read_2(struct aue_softc *, uint16_t);
static void aue_csr_write_1(struct aue_softc *, uint16_t, uint8_t);
static void aue_csr_write_2(struct aue_softc *, uint16_t, uint16_t);
static void aue_eeprom_getword(struct aue_softc *, int, uint16_t *);
static void aue_read_eeprom(struct aue_softc *, uint8_t *, uint16_t,
uint16_t);
static void aue_reset(struct aue_softc *);
static void aue_reset_pegasus_II(struct aue_softc *);
static int aue_ifmedia_upd(struct ifnet *);
static void aue_ifmedia_sts(struct ifnet *, struct ifmediareq *);
static const struct usb_config aue_config[AUE_N_TRANSFER] = {
[AUE_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = (MCLBYTES + 2),
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = aue_bulk_write_callback,
.timeout = 10000, /* 10 seconds */
},
[AUE_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN),
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = aue_bulk_read_callback,
},
[AUE_INTR_DT_RD] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = 0, /* use wMaxPacketSize */
.callback = aue_intr_callback,
},
};
static device_method_t aue_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, aue_probe),
DEVMETHOD(device_attach, aue_attach),
DEVMETHOD(device_detach, aue_detach),
/* MII interface */
DEVMETHOD(miibus_readreg, aue_miibus_readreg),
DEVMETHOD(miibus_writereg, aue_miibus_writereg),
DEVMETHOD(miibus_statchg, aue_miibus_statchg),
DEVMETHOD_END
};
static driver_t aue_driver = {
.name = "aue",
.methods = aue_methods,
.size = sizeof(struct aue_softc)
};
static devclass_t aue_devclass;
DRIVER_MODULE(aue, uhub, aue_driver, aue_devclass, NULL, 0);
DRIVER_MODULE(miibus, aue, miibus_driver, miibus_devclass, 0, 0);
MODULE_DEPEND(aue, uether, 1, 1, 1);
MODULE_DEPEND(aue, usb, 1, 1, 1);
MODULE_DEPEND(aue, ether, 1, 1, 1);
MODULE_DEPEND(aue, miibus, 1, 1, 1);
MODULE_VERSION(aue, 1);
static const struct usb_ether_methods aue_ue_methods = {
.ue_attach_post = aue_attach_post,
.ue_start = aue_start,
.ue_init = aue_init,
.ue_stop = aue_stop,
.ue_tick = aue_tick,
.ue_setmulti = aue_setmulti,
.ue_setpromisc = aue_setpromisc,
.ue_mii_upd = aue_ifmedia_upd,
.ue_mii_sts = aue_ifmedia_sts,
};
#define AUE_SETBIT(sc, reg, x) \
aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x))
#define AUE_CLRBIT(sc, reg, x) \
aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x))
static uint8_t
aue_csr_read_1(struct aue_softc *sc, uint16_t reg)
{
struct usb_device_request req;
usb_error_t err;
uint8_t val;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = AUE_UR_READREG;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, 1);
err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
if (err)
return (0);
return (val);
}
static uint16_t
aue_csr_read_2(struct aue_softc *sc, uint16_t reg)
{
struct usb_device_request req;
usb_error_t err;
uint16_t val;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = AUE_UR_READREG;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, 2);
err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
if (err)
return (0);
return (le16toh(val));
}
static void
aue_csr_write_1(struct aue_softc *sc, uint16_t reg, uint8_t val)
{
struct usb_device_request req;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = AUE_UR_WRITEREG;
req.wValue[0] = val;
req.wValue[1] = 0;
USETW(req.wIndex, reg);
USETW(req.wLength, 1);
if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) {
/* error ignored */
}
}
static void
aue_csr_write_2(struct aue_softc *sc, uint16_t reg, uint16_t val)
{
struct usb_device_request req;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = AUE_UR_WRITEREG;
USETW(req.wValue, val);
USETW(req.wIndex, reg);
USETW(req.wLength, 2);
val = htole16(val);
if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) {
/* error ignored */
}
}
/*
* Read a word of data stored in the EEPROM at address 'addr.'
*/
static void
aue_eeprom_getword(struct aue_softc *sc, int addr, uint16_t *dest)
{
int i;
uint16_t word = 0;
aue_csr_write_1(sc, AUE_EE_REG, addr);
aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ);
for (i = 0; i != AUE_TIMEOUT; i++) {
if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE)
break;
if (uether_pause(&sc->sc_ue, hz / 100))
break;
}
if (i == AUE_TIMEOUT)
device_printf(sc->sc_ue.ue_dev, "EEPROM read timed out\n");
word = aue_csr_read_2(sc, AUE_EE_DATA);
*dest = word;
}
/*
* Read a sequence of words from the EEPROM.
*/
static void
aue_read_eeprom(struct aue_softc *sc, uint8_t *dest,
uint16_t off, uint16_t len)
{
uint16_t *ptr = (uint16_t *)dest;
int i;
for (i = 0; i != len; i++, ptr++)
aue_eeprom_getword(sc, off + i, ptr);
}
static int
aue_miibus_readreg(device_t dev, int phy, int reg)
{
struct aue_softc *sc = device_get_softc(dev);
int i, locked;
uint16_t val = 0;
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
AUE_LOCK(sc);
/*
* The Am79C901 HomePNA PHY actually contains two transceivers: a 1Mbps
* HomePNA PHY and a 10Mbps full/half duplex ethernet PHY with NWAY
* autoneg. However in the ADMtek adapter, only the 1Mbps PHY is
* actually connected to anything, so we ignore the 10Mbps one. It
* happens to be configured for MII address 3, so we filter that out.
*/
if (sc->sc_flags & AUE_FLAG_DUAL_PHY) {
if (phy == 3)
goto done;
#if 0
if (phy != 1)
goto done;
#endif
}
aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ);
for (i = 0; i != AUE_TIMEOUT; i++) {
if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
break;
if (uether_pause(&sc->sc_ue, hz / 100))
break;
}
if (i == AUE_TIMEOUT)
device_printf(sc->sc_ue.ue_dev, "MII read timed out\n");
val = aue_csr_read_2(sc, AUE_PHY_DATA);
done:
if (!locked)
AUE_UNLOCK(sc);
return (val);
}
static int
aue_miibus_writereg(device_t dev, int phy, int reg, int data)
{
struct aue_softc *sc = device_get_softc(dev);
int i;
int locked;
if (phy == 3)
return (0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
AUE_LOCK(sc);
aue_csr_write_2(sc, AUE_PHY_DATA, data);
aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE);
for (i = 0; i != AUE_TIMEOUT; i++) {
if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
break;
if (uether_pause(&sc->sc_ue, hz / 100))
break;
}
if (i == AUE_TIMEOUT)
device_printf(sc->sc_ue.ue_dev, "MII write timed out\n");
if (!locked)
AUE_UNLOCK(sc);
return (0);
}
static void
aue_miibus_statchg(device_t dev)
{
struct aue_softc *sc = device_get_softc(dev);
struct mii_data *mii = GET_MII(sc);
int locked;
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
AUE_LOCK(sc);
AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX)
AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
else
AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
else
AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
/*
* Set the LED modes on the LinkSys adapter.
* This turns on the 'dual link LED' bin in the auxmode
* register of the Broadcom PHY.
*/
if (sc->sc_flags & AUE_FLAG_LSYS) {
uint16_t auxmode;
auxmode = aue_miibus_readreg(dev, 0, 0x1b);
aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04);
}
if (!locked)
AUE_UNLOCK(sc);
}
#define AUE_BITS 6
static void
aue_setmulti(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
struct ifmultiaddr *ifma;
uint32_t h = 0;
uint32_t i;
uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
AUE_LOCK_ASSERT(sc, MA_OWNED);
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
return;
}
AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
/* now program new ones */
if_maddr_rlock(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
h = ether_crc32_le(LLADDR((struct sockaddr_dl *)
ifma->ifma_addr), ETHER_ADDR_LEN) & ((1 << AUE_BITS) - 1);
hashtbl[(h >> 3)] |= 1 << (h & 0x7);
}
if_maddr_runlock(ifp);
/* write the hashtable */
for (i = 0; i != 8; i++)
aue_csr_write_1(sc, AUE_MAR0 + i, hashtbl[i]);
}
static void
aue_reset_pegasus_II(struct aue_softc *sc)
{
/* Magic constants taken from Linux driver. */
aue_csr_write_1(sc, AUE_REG_1D, 0);
aue_csr_write_1(sc, AUE_REG_7B, 2);
#if 0
if ((sc->sc_flags & HAS_HOME_PNA) && mii_mode)
aue_csr_write_1(sc, AUE_REG_81, 6);
else
#endif
aue_csr_write_1(sc, AUE_REG_81, 2);
}
static void
aue_reset(struct aue_softc *sc)
{
int i;
AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
for (i = 0; i != AUE_TIMEOUT; i++) {
if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))
break;
if (uether_pause(&sc->sc_ue, hz / 100))
break;
}
if (i == AUE_TIMEOUT)
device_printf(sc->sc_ue.ue_dev, "reset failed\n");
/*
* The PHY(s) attached to the Pegasus chip may be held
* in reset until we flip on the GPIO outputs. Make sure
* to set the GPIO pins high so that the PHY(s) will
* be enabled.
*
* NOTE: We used to force all of the GPIO pins low first and then
* enable the ones we want. This has been changed to better
* match the ADMtek's reference design to avoid setting the
* power-down configuration line of the PHY at the same time
* it is reset.
*/
aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_SEL0|AUE_GPIO_SEL1);
aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_SEL0|AUE_GPIO_SEL1|AUE_GPIO_OUT0);
if (sc->sc_flags & AUE_FLAG_LSYS) {
/* Grrr. LinkSys has to be different from everyone else. */
aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_SEL0|AUE_GPIO_SEL1);
aue_csr_write_1(sc, AUE_GPIO0,
AUE_GPIO_SEL0|AUE_GPIO_SEL1|AUE_GPIO_OUT0);
}
if (sc->sc_flags & AUE_FLAG_PII)
aue_reset_pegasus_II(sc);
/* Wait a little while for the chip to get its brains in order: */
uether_pause(&sc->sc_ue, hz / 100);
}
static void
aue_attach_post(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
/* reset the adapter */
aue_reset(sc);
/* get station address from the EEPROM */
aue_read_eeprom(sc, ue->ue_eaddr, 0, 3);
}
/*
* Probe for a Pegasus chip.
*/
static int
aue_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != AUE_CONFIG_INDEX)
return (ENXIO);
if (uaa->info.bIfaceIndex != AUE_IFACE_IDX)
return (ENXIO);
/*
* Belkin USB Bluetooth dongles of the F8T012xx1 model series conflict
* with older Belkin USB2LAN adapters. Skip if_aue if we detect one of
* the devices that look like Bluetooth adapters.
*/
if (uaa->info.idVendor == USB_VENDOR_BELKIN &&
uaa->info.idProduct == USB_PRODUCT_BELKIN_F8T012 &&
uaa->info.bcdDevice == 0x0413)
return (ENXIO);
return (usbd_lookup_id_by_uaa(aue_devs, sizeof(aue_devs), uaa));
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
static int
aue_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct aue_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
uint8_t iface_index;
int error;
sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
if (uaa->info.bcdDevice >= 0x0201) {
/* XXX currently undocumented */
sc->sc_flags |= AUE_FLAG_VER_2;
}
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
iface_index = AUE_IFACE_IDX;
error = usbd_transfer_setup(uaa->device, &iface_index,
sc->sc_xfer, aue_config, AUE_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 = &aue_ue_methods;
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "could not attach interface\n");
goto detach;
}
return (0); /* success */
detach:
aue_detach(dev);
return (ENXIO); /* failure */
}
static int
aue_detach(device_t dev)
{
struct aue_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
usbd_transfer_unsetup(sc->sc_xfer, AUE_N_TRANSFER);
uether_ifdetach(ue);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static void
aue_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct aue_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct aue_intrpkt pkt;
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) &&
actlen >= (int)sizeof(pkt)) {
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &pkt, sizeof(pkt));
if (pkt.aue_txstat0)
ifp->if_oerrors++;
if (pkt.aue_txstat0 & (AUE_TXSTAT0_LATECOLL &
AUE_TXSTAT0_EXCESSCOLL))
ifp->if_collisions++;
}
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
aue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct aue_softc *sc = usbd_xfer_softc(xfer);
struct usb_ether *ue = &sc->sc_ue;
struct ifnet *ifp = uether_getifp(ue);
struct aue_rxpkt stat;
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
pc = usbd_xfer_get_frame(xfer, 0);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(11, "received %d bytes\n", actlen);
if (sc->sc_flags & AUE_FLAG_VER_2) {
if (actlen == 0) {
ifp->if_ierrors++;
goto tr_setup;
}
} else {
if (actlen <= (int)(sizeof(stat) + ETHER_CRC_LEN)) {
ifp->if_ierrors++;
goto tr_setup;
}
usbd_copy_out(pc, actlen - sizeof(stat), &stat,
sizeof(stat));
/*
* turn off all the non-error bits in the rx status
* word:
*/
stat.aue_rxstat &= AUE_RXSTAT_MASK;
if (stat.aue_rxstat) {
ifp->if_ierrors++;
goto tr_setup;
}
/* No errors; receive the packet. */
actlen -= (sizeof(stat) + ETHER_CRC_LEN);
}
uether_rxbuf(ue, pc, 0, actlen);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
uether_rxflush(ue);
return;
default: /* Error */
DPRINTF("bulk read error, %s\n",
usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
aue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct aue_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct usb_page_cache *pc;
struct mbuf *m;
uint8_t buf[2];
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
pc = usbd_xfer_get_frame(xfer, 0);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(11, "transfer of %d bytes complete\n", actlen);
ifp->if_opackets++;
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
if ((sc->sc_flags & AUE_FLAG_LINK) == 0) {
/*
* don't send anything if there is no link !
*/
return;
}
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
return;
if (m->m_pkthdr.len > MCLBYTES)
m->m_pkthdr.len = MCLBYTES;
if (sc->sc_flags & AUE_FLAG_VER_2) {
usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
} else {
usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2));
/*
* The ADMtek documentation says that the
* packet length is supposed to be specified
* in the first two bytes of the transfer,
* however it actually seems to ignore this
* info and base the frame size on the bulk
* transfer length.
*/
buf[0] = (uint8_t)(m->m_pkthdr.len);
buf[1] = (uint8_t)(m->m_pkthdr.len >> 8);
usbd_copy_in(pc, 0, buf, 2);
usbd_m_copy_in(pc, 2, m, 0, 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);
usbd_transfer_submit(xfer);
return;
default: /* Error */
DPRINTFN(11, "transfer error, %s\n",
usbd_errstr(error));
ifp->if_oerrors++;
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
aue_tick(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
struct mii_data *mii = GET_MII(sc);
AUE_LOCK_ASSERT(sc, MA_OWNED);
mii_tick(mii);
if ((sc->sc_flags & AUE_FLAG_LINK) == 0
&& mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
sc->sc_flags |= AUE_FLAG_LINK;
aue_start(ue);
}
}
static void
aue_start(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
/*
* start the USB transfers, if not already started:
*/
usbd_transfer_start(sc->sc_xfer[AUE_INTR_DT_RD]);
usbd_transfer_start(sc->sc_xfer[AUE_BULK_DT_RD]);
usbd_transfer_start(sc->sc_xfer[AUE_BULK_DT_WR]);
}
static void
aue_init(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
int i;
AUE_LOCK_ASSERT(sc, MA_OWNED);
/*
* Cancel pending I/O
*/
aue_reset(sc);
/* Set MAC address */
for (i = 0; i != ETHER_ADDR_LEN; i++)
aue_csr_write_1(sc, AUE_PAR0 + i, IF_LLADDR(ifp)[i]);
/* update promiscuous setting */
aue_setpromisc(ue);
/* Load the multicast filter. */
aue_setmulti(ue);
/* Enable RX and TX */
aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB);
AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
usbd_xfer_set_stall(sc->sc_xfer[AUE_BULK_DT_WR]);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
aue_start(ue);
}
static void
aue_setpromisc(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
AUE_LOCK_ASSERT(sc, MA_OWNED);
/* if we want promiscuous mode, set the allframes bit: */
if (ifp->if_flags & IFF_PROMISC)
AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
else
AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
}
/*
* Set media options.
*/
static int
aue_ifmedia_upd(struct ifnet *ifp)
{
struct aue_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
struct mii_softc *miisc;
AUE_LOCK_ASSERT(sc, MA_OWNED);
sc->sc_flags &= ~AUE_FLAG_LINK;
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
PHY_RESET(miisc);
mii_mediachg(mii);
return (0);
}
/*
* Report current media status.
*/
static void
aue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct aue_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
AUE_LOCK(sc);
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
AUE_UNLOCK(sc);
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
static void
aue_stop(struct usb_ether *ue)
{
struct aue_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
AUE_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
sc->sc_flags &= ~AUE_FLAG_LINK;
/*
* stop all the transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[AUE_BULK_DT_WR]);
usbd_transfer_stop(sc->sc_xfer[AUE_BULK_DT_RD]);
usbd_transfer_stop(sc->sc_xfer[AUE_INTR_DT_RD]);
aue_csr_write_1(sc, AUE_CTL0, 0);
aue_csr_write_1(sc, AUE_CTL1, 0);
aue_reset(sc);
}