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freebsd-nq/sys/dev/usb/net/if_mos.c
Warner Losh f809f280e0 Create a USB_PNP_INFO and use it to export the existing PNP 
tables. Some drivers needed some slight re-arrangement of declarations
to accommodate this. Change the USB pnp tables slightly to allow
better compatibility with the system by moving linux driver info from
start of each entry to the end. All other PNP tables in the system
have the per-device flags and such at the end of the elements rather
that at the beginning.

Differential Review: https://reviews.freebsd.org/D3458
2015-12-11 05:28:00 +00:00

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/*-
* Copyright (c) 2011 Rick van der Zwet <info@rickvanderzwet.nl>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*-
* Copyright (c) 2008 Johann Christian Rode <jcrode@gmx.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*-
* Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*-
* 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("$FreeBSD$");
/*
* Moschip MCS7730/MCS7830/MCS7832 USB to Ethernet controller
* The datasheet is available at the following URL:
* http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf
*/
/*
* The FreeBSD if_mos.c driver is based on various different sources:
* The vendor provided driver at the following URL:
* http://www.moschip.com/data/products/MCS7830/Driver_FreeBSD_7830.tar.gz
*
* Mixed together with the OpenBSD if_mos.c driver for validation and checking
* and the FreeBSD if_reu.c as reference for the USB Ethernet framework.
*/
#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/socket.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 <net/if.h>
#include <net/if_var.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR mos_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_mosreg.h>
#include "if_mosreg.h"
#ifdef USB_DEBUG
static int mos_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW, 0, "USB mos");
SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RWTUN, &mos_debug, 0,
"Debug level");
#endif
#define MOS_DPRINTFN(fmt,...) \
DPRINTF("mos: %s: " fmt "\n",__FUNCTION__,## __VA_ARGS__)
#define USB_PRODUCT_MOSCHIP_MCS7730 0x7730
#define USB_PRODUCT_SITECOMEU_LN030 0x0021
/* Various supported device vendors/products. */
static const STRUCT_USB_HOST_ID mos_devs[] = {
{USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730)},
{USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830, MCS7830)},
{USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832, MCS7832)},
{USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)},
};
static int mos_probe(device_t dev);
static int mos_attach(device_t dev);
static void mos_attach_post(struct usb_ether *ue);
static int mos_detach(device_t dev);
static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error);
static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error);
static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error);
static void mos_tick(struct usb_ether *);
static void mos_start(struct usb_ether *);
static void mos_init(struct usb_ether *);
static void mos_chip_init(struct mos_softc *);
static void mos_stop(struct usb_ether *);
static int mos_miibus_readreg(device_t, int, int);
static int mos_miibus_writereg(device_t, int, int, int);
static void mos_miibus_statchg(device_t);
static int mos_ifmedia_upd(struct ifnet *);
static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *);
static void mos_reset(struct mos_softc *sc);
static int mos_reg_read_1(struct mos_softc *, int);
static int mos_reg_read_2(struct mos_softc *, int);
static int mos_reg_write_1(struct mos_softc *, int, int);
static int mos_reg_write_2(struct mos_softc *, int, int);
static int mos_readmac(struct mos_softc *, uint8_t *);
static int mos_writemac(struct mos_softc *, uint8_t *);
static int mos_write_mcast(struct mos_softc *, u_char *);
static void mos_setmulti(struct usb_ether *);
static void mos_setpromisc(struct usb_ether *);
static const struct usb_config mos_config[MOS_ENDPT_MAX] = {
[MOS_ENDPT_TX] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = (MCLBYTES + 2),
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = mos_bulk_write_callback,
.timeout = 10000,
},
[MOS_ENDPT_RX] = {
.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 = mos_bulk_read_callback,
},
[MOS_ENDPT_INTR] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = 0,
.callback = mos_intr_callback,
},
};
static device_method_t mos_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, mos_probe),
DEVMETHOD(device_attach, mos_attach),
DEVMETHOD(device_detach, mos_detach),
/* MII interface */
DEVMETHOD(miibus_readreg, mos_miibus_readreg),
DEVMETHOD(miibus_writereg, mos_miibus_writereg),
DEVMETHOD(miibus_statchg, mos_miibus_statchg),
DEVMETHOD_END
};
static driver_t mos_driver = {
.name = "mos",
.methods = mos_methods,
.size = sizeof(struct mos_softc)
};
static devclass_t mos_devclass;
DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0);
DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0);
MODULE_DEPEND(mos, uether, 1, 1, 1);
MODULE_DEPEND(mos, usb, 1, 1, 1);
MODULE_DEPEND(mos, ether, 1, 1, 1);
MODULE_DEPEND(mos, miibus, 1, 1, 1);
USB_PNP_HOST_INFO(mos_devs);
static const struct usb_ether_methods mos_ue_methods = {
.ue_attach_post = mos_attach_post,
.ue_start = mos_start,
.ue_init = mos_init,
.ue_stop = mos_stop,
.ue_tick = mos_tick,
.ue_setmulti = mos_setmulti,
.ue_setpromisc = mos_setpromisc,
.ue_mii_upd = mos_ifmedia_upd,
.ue_mii_sts = mos_ifmedia_sts,
};
static int
mos_reg_read_1(struct mos_softc *sc, int reg)
{
struct usb_device_request req;
usb_error_t err;
uByte val = 0;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = MOS_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) {
MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg);
return (-1);
}
return (val);
}
static int
mos_reg_read_2(struct mos_softc *sc, int reg)
{
struct usb_device_request req;
usb_error_t err;
uWord val;
USETW(val, 0);
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = MOS_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) {
MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg);
return (-1);
}
return (UGETW(val));
}
static int
mos_reg_write_1(struct mos_softc *sc, int reg, int aval)
{
struct usb_device_request req;
usb_error_t err;
uByte val;
val = aval;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = MOS_UR_WRITEREG;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, 1);
err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
if (err) {
MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg);
return (-1);
}
return (0);
}
static int
mos_reg_write_2(struct mos_softc *sc, int reg, int aval)
{
struct usb_device_request req;
usb_error_t err;
uWord val;
USETW(val, aval);
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = MOS_UR_WRITEREG;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, 2);
err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
if (err) {
MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg);
return (-1);
}
return (0);
}
static int
mos_readmac(struct mos_softc *sc, u_char *mac)
{
struct usb_device_request req;
usb_error_t err;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = MOS_UR_READREG;
USETW(req.wValue, 0);
USETW(req.wIndex, MOS_MAC);
USETW(req.wLength, ETHER_ADDR_LEN);
err = uether_do_request(&sc->sc_ue, &req, mac, 1000);
if (err) {
return (-1);
}
return (0);
}
static int
mos_writemac(struct mos_softc *sc, uint8_t *mac)
{
struct usb_device_request req;
usb_error_t err;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = MOS_UR_WRITEREG;
USETW(req.wValue, 0);
USETW(req.wIndex, MOS_MAC);
USETW(req.wLength, ETHER_ADDR_LEN);
err = uether_do_request(&sc->sc_ue, &req, mac, 1000);
if (err) {
MOS_DPRINTFN("mos_writemac error");
return (-1);
}
return (0);
}
static int
mos_write_mcast(struct mos_softc *sc, u_char *hashtbl)
{
struct usb_device_request req;
usb_error_t err;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = MOS_UR_WRITEREG;
USETW(req.wValue, 0);
USETW(req.wIndex, MOS_MCAST_TABLE);
USETW(req.wLength, 8);
err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000);
if (err) {
MOS_DPRINTFN("mos_reg_mcast error");
return (-1);
}
return (0);
}
static int
mos_miibus_readreg(struct device *dev, int phy, int reg)
{
struct mos_softc *sc = device_get_softc(dev);
uWord val;
int i, res, locked;
USETW(val, 0);
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
MOS_LOCK(sc);
mos_reg_write_2(sc, MOS_PHY_DATA, 0);
mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) |
MOS_PHYCTL_READ);
mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) |
MOS_PHYSTS_PENDING);
for (i = 0; i < MOS_TIMEOUT; i++) {
if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY)
break;
}
if (i == MOS_TIMEOUT) {
MOS_DPRINTFN("MII read timeout");
}
res = mos_reg_read_2(sc, MOS_PHY_DATA);
if (!locked)
MOS_UNLOCK(sc);
return (res);
}
static int
mos_miibus_writereg(device_t dev, int phy, int reg, int val)
{
struct mos_softc *sc = device_get_softc(dev);
int i, locked;
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
MOS_LOCK(sc);
mos_reg_write_2(sc, MOS_PHY_DATA, val);
mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) |
MOS_PHYCTL_WRITE);
mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) |
MOS_PHYSTS_PENDING);
for (i = 0; i < MOS_TIMEOUT; i++) {
if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY)
break;
}
if (i == MOS_TIMEOUT)
MOS_DPRINTFN("MII write timeout");
if (!locked)
MOS_UNLOCK(sc);
return 0;
}
static void
mos_miibus_statchg(device_t dev)
{
struct mos_softc *sc = device_get_softc(dev);
struct mii_data *mii = GET_MII(sc);
int val, err, locked;
locked = mtx_owned(&sc->sc_mtx);
if (!locked)
MOS_LOCK(sc);
/* disable RX, TX prior to changing FDX, SPEEDSEL */
val = mos_reg_read_1(sc, MOS_CTL);
val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB);
mos_reg_write_1(sc, MOS_CTL, val);
/* reset register which counts dropped frames */
mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0);
if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
val |= MOS_CTL_FDX_ENB;
else
val &= ~(MOS_CTL_FDX_ENB);
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_100_TX:
val |= MOS_CTL_SPEEDSEL;
break;
case IFM_10_T:
val &= ~(MOS_CTL_SPEEDSEL);
break;
}
/* re-enable TX, RX */
val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB);
err = mos_reg_write_1(sc, MOS_CTL, val);
if (err)
MOS_DPRINTFN("media change failed");
if (!locked)
MOS_UNLOCK(sc);
}
/*
* Set media options.
*/
static int
mos_ifmedia_upd(struct ifnet *ifp)
{
struct mos_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
struct mii_softc *miisc;
int error;
MOS_LOCK_ASSERT(sc, MA_OWNED);
sc->mos_link = 0;
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
PHY_RESET(miisc);
error = mii_mediachg(mii);
return (error);
}
/*
* Report current media status.
*/
static void
mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct mos_softc *sc = ifp->if_softc;
struct mii_data *mii = GET_MII(sc);
MOS_LOCK(sc);
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
MOS_UNLOCK(sc);
}
static void
mos_setpromisc(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
uint8_t rxmode;
MOS_LOCK_ASSERT(sc, MA_OWNED);
rxmode = mos_reg_read_1(sc, MOS_CTL);
/* If we want promiscuous mode, set the allframes bit. */
if (ifp->if_flags & IFF_PROMISC) {
rxmode |= MOS_CTL_RX_PROMISC;
} else {
rxmode &= ~MOS_CTL_RX_PROMISC;
}
mos_reg_write_1(sc, MOS_CTL, rxmode);
}
static void
mos_setmulti(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
struct ifmultiaddr *ifma;
uint32_t h = 0;
uint8_t rxmode;
uint8_t hashtbl[8] = {0, 0, 0, 0, 0, 0, 0, 0};
int allmulti = 0;
MOS_LOCK_ASSERT(sc, MA_OWNED);
rxmode = mos_reg_read_1(sc, MOS_CTL);
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC)
allmulti = 1;
/* get all new ones */
if_maddr_rlock(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK) {
allmulti = 1;
continue;
};
h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
hashtbl[h / 8] |= 1 << (h % 8);
}
if_maddr_runlock(ifp);
/* now program new ones */
if (allmulti == 1) {
rxmode |= MOS_CTL_ALLMULTI;
mos_reg_write_1(sc, MOS_CTL, rxmode);
} else {
rxmode &= ~MOS_CTL_ALLMULTI;
mos_write_mcast(sc, (void *)&hashtbl);
mos_reg_write_1(sc, MOS_CTL, rxmode);
}
}
static void
mos_reset(struct mos_softc *sc)
{
uint8_t ctl;
ctl = mos_reg_read_1(sc, MOS_CTL);
ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB |
MOS_CTL_RX_ENB);
/* Disable RX, TX, promiscuous and allmulticast mode */
mos_reg_write_1(sc, MOS_CTL, ctl);
/* Reset frame drop counter register to zero */
mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0);
/* Wait a little while for the chip to get its brains in order. */
usb_pause_mtx(&sc->sc_mtx, hz / 128);
return;
}
static void
mos_chip_init(struct mos_softc *sc)
{
int i;
/*
* Rev.C devices have a pause threshold register which needs to be set
* at startup.
*/
if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) {
for (i = 0; i < MOS_PAUSE_REWRITES; i++)
mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0);
}
sc->mos_phyaddrs[0] = 1;
sc->mos_phyaddrs[1] = 0xFF;
}
/*
* Probe for a MCS7x30 chip.
*/
static int
mos_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
int retval;
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != MOS_CONFIG_IDX)
return (ENXIO);
if (uaa->info.bIfaceIndex != MOS_IFACE_IDX)
return (ENXIO);
retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa);
return (retval);
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
static int
mos_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct mos_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
uint8_t iface_index;
int error;
sc->mos_flags = USB_GET_DRIVER_INFO(uaa);
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
iface_index = MOS_IFACE_IDX;
error = usbd_transfer_setup(uaa->device, &iface_index,
sc->sc_xfer, mos_config, MOS_ENDPT_MAX,
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 = &mos_ue_methods;
if (sc->mos_flags & MCS7730) {
MOS_DPRINTFN("model: MCS7730");
} else if (sc->mos_flags & MCS7830) {
MOS_DPRINTFN("model: MCS7830");
} else if (sc->mos_flags & MCS7832) {
MOS_DPRINTFN("model: MCS7832");
}
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "could not attach interface\n");
goto detach;
}
return (0);
detach:
mos_detach(dev);
return (ENXIO);
}
static void
mos_attach_post(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
int err;
/* Read MAC address, inform the world. */
err = mos_readmac(sc, ue->ue_eaddr);
if (err)
MOS_DPRINTFN("couldn't get MAC address");
MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr));
mos_chip_init(sc);
}
static int
mos_detach(device_t dev)
{
struct mos_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX);
uether_ifdetach(ue);
mtx_destroy(&sc->sc_mtx);
return (0);
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
static void
mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct mos_softc *sc = usbd_xfer_softc(xfer);
struct usb_ether *ue = &sc->sc_ue;
struct ifnet *ifp = uether_getifp(ue);
uint8_t rxstat = 0;
uint32_t actlen;
uint16_t pktlen = 0;
struct usb_page_cache *pc;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
pc = usbd_xfer_get_frame(xfer, 0);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
MOS_DPRINTFN("actlen : %d", actlen);
if (actlen <= 1) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
goto tr_setup;
}
/* evaluate status byte at the end */
usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat,
sizeof(rxstat));
if (rxstat != MOS_RXSTS_VALID) {
MOS_DPRINTFN("erroneous frame received");
if (rxstat & MOS_RXSTS_SHORT_FRAME)
MOS_DPRINTFN("frame size less than 64 bytes");
if (rxstat & MOS_RXSTS_LARGE_FRAME) {
MOS_DPRINTFN("frame size larger than "
"1532 bytes");
}
if (rxstat & MOS_RXSTS_CRC_ERROR)
MOS_DPRINTFN("CRC error");
if (rxstat & MOS_RXSTS_ALIGN_ERROR)
MOS_DPRINTFN("alignment error");
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
goto tr_setup;
}
/* Remember the last byte was used for the status fields */
pktlen = actlen - 1;
if (pktlen < sizeof(struct ether_header)) {
MOS_DPRINTFN("error: pktlen %d is smaller "
"than ether_header %zd", pktlen,
sizeof(struct ether_header));
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
goto tr_setup;
}
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:
MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer));
return;
}
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
static void
mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct mos_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct usb_page_cache *pc;
struct mbuf *m;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
MOS_DPRINTFN("transfer of complete");
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
/*
* XXX: don't send anything if there is no link?
*/
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
return;
pc = usbd_xfer_get_frame(xfer, 0);
usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
usbd_xfer_set_frame_len(xfer, 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);
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
return;
default:
MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error));
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
if (error != USB_ERR_CANCELLED) {
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
mos_tick(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
struct mii_data *mii = GET_MII(sc);
MOS_LOCK_ASSERT(sc, MA_OWNED);
mii_tick(mii);
if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
MOS_DPRINTFN("got link");
sc->mos_link++;
mos_start(ue);
}
}
static void
mos_start(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
/*
* start the USB transfers, if not already started:
*/
usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]);
usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]);
usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]);
}
static void
mos_init(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
uint8_t rxmode;
MOS_LOCK_ASSERT(sc, MA_OWNED);
/* Cancel pending I/O and free all RX/TX buffers. */
mos_reset(sc);
/* Write MAC address */
mos_writemac(sc, IF_LLADDR(ifp));
/* Read and set transmitter IPG values */
sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0);
sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1);
mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]);
mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]);
/*
* Enable receiver and transmitter, bridge controls speed/duplex
* mode
*/
rxmode = mos_reg_read_1(sc, MOS_CTL);
rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB;
rxmode &= ~(MOS_CTL_SLEEP);
mos_setpromisc(ue);
/* XXX: broadcast mode? */
mos_reg_write_1(sc, MOS_CTL, rxmode);
/* Load the multicast filter. */
mos_setmulti(ue);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
mos_start(ue);
}
static void
mos_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct mos_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct usb_page_cache *pc;
uint32_t pkt;
int actlen;
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
MOS_DPRINTFN("actlen %i", actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &pkt, sizeof(pkt));
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
return;
default:
if (error != USB_ERR_CANCELLED) {
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
static void
mos_stop(struct usb_ether *ue)
{
struct mos_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
mos_reset(sc);
MOS_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
/* stop all the transfers, if not already stopped */
usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]);
usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]);
usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]);
sc->mos_link = 0;
}
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