507 lines
13 KiB
C
507 lines
13 KiB
C
/*
|
|
* Copyright (c) 1997, 1998, 1999
|
|
* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Bill Paul.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Pseudo-driver for internal NWAY support on DEC 21143 and workalike
|
|
* controllers. Technically we're abusing the miibus code to handle
|
|
* media selection and NWAY support here since there is no MII
|
|
* interface. However the logical operations are roughly the same,
|
|
* and the alternative is to create a fake MII interface in the driver,
|
|
* which is harder to do.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_arp.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
#include <dev/mii/miidevs.h>
|
|
|
|
#include <machine/clock.h>
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus_memio.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <pci/pcivar.h>
|
|
|
|
#include <pci/if_dcreg.h>
|
|
|
|
#include "miibus_if.h"
|
|
|
|
#if !defined(lint)
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
|
|
#define DC_SETBIT(sc, reg, x) \
|
|
CSR_WRITE_4(sc, reg, \
|
|
CSR_READ_4(sc, reg) | x)
|
|
|
|
#define DC_CLRBIT(sc, reg, x) \
|
|
CSR_WRITE_4(sc, reg, \
|
|
CSR_READ_4(sc, reg) & ~x)
|
|
|
|
#define MIIF_AUTOTIMEOUT 0x0004
|
|
|
|
/*
|
|
* This is the subsystem ID for the built-in 21143 ethernet
|
|
* in several Compaq Presario systems. Apparently these are
|
|
* 10Mbps only, so we need to treat them specially.
|
|
*/
|
|
#define COMPAQ_PRESARIO_ID 0xb0bb0e11
|
|
|
|
static int dcphy_probe __P((device_t));
|
|
static int dcphy_attach __P((device_t));
|
|
static int dcphy_detach __P((device_t));
|
|
|
|
static device_method_t dcphy_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, dcphy_probe),
|
|
DEVMETHOD(device_attach, dcphy_attach),
|
|
DEVMETHOD(device_detach, dcphy_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t dcphy_devclass;
|
|
|
|
static driver_t dcphy_driver = {
|
|
"dcphy",
|
|
dcphy_methods,
|
|
sizeof(struct mii_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(dcphy, miibus, dcphy_driver, dcphy_devclass, 0, 0);
|
|
|
|
int dcphy_service __P((struct mii_softc *, struct mii_data *, int));
|
|
void dcphy_status __P((struct mii_softc *));
|
|
static int dcphy_auto __P((struct mii_softc *, int));
|
|
static void dcphy_reset __P((struct mii_softc *));
|
|
|
|
static int dcphy_probe(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_attach_args *ma;
|
|
|
|
ma = device_get_ivars(dev);
|
|
|
|
/*
|
|
* The dc driver will report the 21143 vendor and device
|
|
* ID to let us know that it wants us to attach.
|
|
*/
|
|
if (ma->mii_id1 != DC_VENDORID_DEC ||
|
|
ma->mii_id2 != DC_DEVICEID_21143)
|
|
return(ENXIO);
|
|
|
|
device_set_desc(dev, "Intel 21143 NWAY media interface");
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int dcphy_attach(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_attach_args *ma;
|
|
struct mii_data *mii;
|
|
struct dc_softc *dc_sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
ma = device_get_ivars(dev);
|
|
sc->mii_dev = device_get_parent(dev);
|
|
mii = device_get_softc(sc->mii_dev);
|
|
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
|
|
|
|
sc->mii_inst = mii->mii_instance;
|
|
sc->mii_phy = ma->mii_phyno;
|
|
sc->mii_service = dcphy_service;
|
|
sc->mii_pdata = mii;
|
|
|
|
sc->mii_flags |= MIIF_NOISOLATE;
|
|
mii->mii_instance++;
|
|
|
|
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
|
|
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
|
|
BMCR_ISO);
|
|
|
|
/*dcphy_reset(sc);*/
|
|
dc_sc = mii->mii_ifp->if_softc;
|
|
CSR_WRITE_4(dc_sc, DC_10BTSTAT, 0);
|
|
CSR_WRITE_4(dc_sc, DC_10BTCTRL, 0);
|
|
|
|
switch(pci_read_config(device_get_parent(sc->mii_dev),
|
|
DC_PCI_CSID, 4)) {
|
|
case COMPAQ_PRESARIO_ID:
|
|
/* Example of how to only allow 10Mbps modes. */
|
|
sc->mii_capabilities = BMSR_ANEG|BMSR_10TFDX|BMSR_10THDX;
|
|
break;
|
|
default:
|
|
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP,
|
|
sc->mii_inst), BMCR_LOOP|BMCR_S100);
|
|
|
|
sc->mii_capabilities =
|
|
BMSR_ANEG|BMSR_100TXFDX|BMSR_100TXHDX|
|
|
BMSR_10TFDX|BMSR_10THDX;
|
|
break;
|
|
}
|
|
|
|
sc->mii_capabilities &= ma->mii_capmask;
|
|
device_printf(dev, " ");
|
|
if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
|
|
printf("no media present");
|
|
else
|
|
mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
|
|
printf("\n");
|
|
#undef ADD
|
|
|
|
MIIBUS_MEDIAINIT(sc->mii_dev);
|
|
return(0);
|
|
}
|
|
|
|
static int dcphy_detach(dev)
|
|
device_t dev;
|
|
{
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
|
|
sc = device_get_softc(dev);
|
|
mii = device_get_softc(device_get_parent(dev));
|
|
sc->mii_dev = NULL;
|
|
LIST_REMOVE(sc, mii_list);
|
|
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
dcphy_service(sc, mii, cmd)
|
|
struct mii_softc *sc;
|
|
struct mii_data *mii;
|
|
int cmd;
|
|
{
|
|
struct dc_softc *dc_sc;
|
|
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
|
|
int reg;
|
|
u_int32_t mode;
|
|
|
|
dc_sc = mii->mii_ifp->if_softc;
|
|
|
|
switch (cmd) {
|
|
case MII_POLLSTAT:
|
|
/*
|
|
* If we're not polling our PHY instance, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
|
|
return (0);
|
|
}
|
|
break;
|
|
|
|
case MII_MEDIACHG:
|
|
/*
|
|
* If the media indicates a different PHY instance,
|
|
* isolate ourselves.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* If the interface is not up, don't do anything.
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
break;
|
|
|
|
sc->mii_flags = 0;
|
|
mii->mii_media_active = IFM_NONE;
|
|
mode = CSR_READ_4(dc_sc, DC_NETCFG);
|
|
mode &= ~(DC_NETCFG_FULLDUPLEX|DC_NETCFG_PORTSEL|
|
|
DC_NETCFG_PCS|DC_NETCFG_SCRAMBLER|DC_NETCFG_SPEEDSEL);
|
|
|
|
switch (IFM_SUBTYPE(ife->ifm_media)) {
|
|
case IFM_AUTO:
|
|
/*dcphy_reset(sc);*/
|
|
sc->mii_flags &= ~MIIF_DOINGAUTO;
|
|
(void) dcphy_auto(sc, 0);
|
|
break;
|
|
case IFM_100_T4:
|
|
/*
|
|
* XXX Not supported as a manual setting right now.
|
|
*/
|
|
return (EINVAL);
|
|
case IFM_100_TX:
|
|
dcphy_reset(sc);
|
|
DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL);
|
|
mode |= DC_NETCFG_PORTSEL|DC_NETCFG_PCS|
|
|
DC_NETCFG_SCRAMBLER;
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
|
|
mode |= DC_NETCFG_FULLDUPLEX;
|
|
else
|
|
mode &= ~DC_NETCFG_FULLDUPLEX;
|
|
CSR_WRITE_4(dc_sc, DC_NETCFG, mode);
|
|
break;
|
|
case IFM_10_T:
|
|
DC_CLRBIT(dc_sc, DC_SIARESET, DC_SIA_RESET);
|
|
DC_CLRBIT(dc_sc, DC_10BTCTRL, 0xFFFF);
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
|
|
DC_SETBIT(dc_sc, DC_10BTCTRL, 0x7F3D);
|
|
else
|
|
DC_SETBIT(dc_sc, DC_10BTCTRL, 0x7F3F);
|
|
DC_SETBIT(dc_sc, DC_SIARESET, DC_SIA_RESET);
|
|
DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL);
|
|
mode &= ~DC_NETCFG_PORTSEL;
|
|
mode |= DC_NETCFG_SPEEDSEL;
|
|
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
|
|
mode |= DC_NETCFG_FULLDUPLEX;
|
|
else
|
|
mode &= ~DC_NETCFG_FULLDUPLEX;
|
|
CSR_WRITE_4(dc_sc, DC_NETCFG, mode);
|
|
break;
|
|
default:
|
|
return(EINVAL);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case MII_TICK:
|
|
/*
|
|
* If we're not currently selected, just return.
|
|
*/
|
|
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
|
|
return (0);
|
|
|
|
/*
|
|
* Only used for autonegotiation.
|
|
*/
|
|
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
|
|
return (0);
|
|
|
|
/*
|
|
* Is the interface even up?
|
|
*/
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return (0);
|
|
|
|
reg = CSR_READ_4(dc_sc, DC_10BTSTAT) &
|
|
(DC_TSTAT_LS10|DC_TSTAT_LS100);
|
|
|
|
if (!(reg & DC_TSTAT_LS10) || !(reg & DC_TSTAT_LS100))
|
|
return(0);
|
|
|
|
/*
|
|
* Only retry autonegotiation every 5 seconds.
|
|
*/
|
|
if (++sc->mii_ticks != 50)
|
|
return (0);
|
|
|
|
sc->mii_ticks = 0;
|
|
/*if (DC_IS_INTEL(dc_sc))*/
|
|
sc->mii_flags &= ~MIIF_DOINGAUTO;
|
|
dcphy_auto(sc, 0);
|
|
|
|
break;
|
|
}
|
|
|
|
/* Update the media status. */
|
|
dcphy_status(sc);
|
|
|
|
/* Callback if something changed. */
|
|
if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
|
|
MIIBUS_STATCHG(sc->mii_dev);
|
|
sc->mii_active = mii->mii_media_active;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
dcphy_status(sc)
|
|
struct mii_softc *sc;
|
|
{
|
|
struct mii_data *mii = sc->mii_pdata;
|
|
int reg, anlpar, tstat = 0;
|
|
struct dc_softc *dc_sc;
|
|
|
|
dc_sc = mii->mii_ifp->if_softc;
|
|
|
|
mii->mii_media_status = IFM_AVALID;
|
|
mii->mii_media_active = IFM_ETHER;
|
|
|
|
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
|
|
return;
|
|
|
|
reg = CSR_READ_4(dc_sc, DC_10BTSTAT) &
|
|
(DC_TSTAT_LS10|DC_TSTAT_LS100);
|
|
|
|
if (!(reg & DC_TSTAT_LS10) || !(reg & DC_TSTAT_LS100))
|
|
mii->mii_media_status |= IFM_ACTIVE;
|
|
|
|
if (CSR_READ_4(dc_sc, DC_10BTCTRL) & DC_TCTL_AUTONEGENBL) {
|
|
/* Erg, still trying, I guess... */
|
|
tstat = CSR_READ_4(dc_sc, DC_10BTSTAT);
|
|
if ((tstat & DC_TSTAT_ANEGSTAT) != DC_ASTAT_AUTONEGCMP) {
|
|
if ((DC_IS_MACRONIX(dc_sc) || DC_IS_PNICII(dc_sc)) &&
|
|
(tstat & DC_TSTAT_ANEGSTAT) == DC_ASTAT_DISABLE)
|
|
goto skip;
|
|
mii->mii_media_active |= IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
if (tstat & DC_TSTAT_LP_CAN_NWAY) {
|
|
anlpar = tstat >> 16;
|
|
if (anlpar & ANLPAR_T4 &&
|
|
sc->mii_capabilities & BMSR_100TXHDX)
|
|
mii->mii_media_active |= IFM_100_T4;
|
|
else if (anlpar & ANLPAR_TX_FD &&
|
|
sc->mii_capabilities & BMSR_100TXFDX)
|
|
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
|
|
else if (anlpar & ANLPAR_TX &&
|
|
sc->mii_capabilities & BMSR_100TXHDX)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else if (anlpar & ANLPAR_10_FD)
|
|
mii->mii_media_active |= IFM_10_T|IFM_FDX;
|
|
else if (anlpar & ANLPAR_10)
|
|
mii->mii_media_active |= IFM_10_T;
|
|
else
|
|
mii->mii_media_active |= IFM_NONE;
|
|
if (DC_IS_INTEL(dc_sc))
|
|
DC_CLRBIT(dc_sc, DC_10BTCTRL,
|
|
DC_TCTL_AUTONEGENBL);
|
|
return;
|
|
}
|
|
/*
|
|
* If the other side doesn't support NWAY, then the
|
|
* best we can do is determine if we have a 10Mbps or
|
|
* 100Mbps link. There's no way to know if the link
|
|
* is full or half duplex, so we default to half duplex
|
|
* and hope that the user is clever enough to manually
|
|
* change the media settings if we're wrong.
|
|
*/
|
|
if (!(reg & DC_TSTAT_LS100))
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else if (!(reg & DC_TSTAT_LS10))
|
|
mii->mii_media_active |= IFM_10_T;
|
|
else
|
|
mii->mii_media_active |= IFM_NONE;
|
|
if (DC_IS_INTEL(dc_sc))
|
|
DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL);
|
|
return;
|
|
}
|
|
|
|
skip:
|
|
if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SCRAMBLER)
|
|
mii->mii_media_active |= IFM_100_TX;
|
|
else
|
|
mii->mii_media_active |= IFM_10_T;
|
|
if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX)
|
|
mii->mii_media_active |= IFM_FDX;
|
|
|
|
return;
|
|
}
|
|
|
|
static int
|
|
dcphy_auto(mii, waitfor)
|
|
struct mii_softc *mii;
|
|
int waitfor;
|
|
{
|
|
int i;
|
|
struct dc_softc *sc;
|
|
|
|
sc = mii->mii_pdata->mii_ifp->if_softc;
|
|
|
|
if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX);
|
|
DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
if (mii->mii_capabilities & BMSR_100TXHDX)
|
|
CSR_WRITE_4(sc, DC_10BTCTRL, 0x3FFFF);
|
|
else
|
|
CSR_WRITE_4(sc, DC_10BTCTRL, 0xFFFF);
|
|
DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
DC_SETBIT(sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL);
|
|
DC_SETBIT(sc, DC_10BTSTAT, DC_ASTAT_TXDISABLE);
|
|
}
|
|
|
|
if (waitfor) {
|
|
/* Wait 500ms for it to complete. */
|
|
for (i = 0; i < 500; i++) {
|
|
if ((CSR_READ_4(sc, DC_10BTSTAT) & DC_TSTAT_ANEGSTAT)
|
|
== DC_ASTAT_AUTONEGCMP)
|
|
return(0);
|
|
DELAY(1000);
|
|
}
|
|
/*
|
|
* Don't need to worry about clearing MIIF_DOINGAUTO.
|
|
* If that's set, a timeout is pending, and it will
|
|
* clear the flag.
|
|
*/
|
|
return(EIO);
|
|
}
|
|
|
|
/*
|
|
* Just let it finish asynchronously. This is for the benefit of
|
|
* the tick handler driving autonegotiation. Don't want 500ms
|
|
* delays all the time while the system is running!
|
|
*/
|
|
if ((mii->mii_flags & MIIF_DOINGAUTO) == 0)
|
|
mii->mii_flags |= MIIF_DOINGAUTO;
|
|
|
|
return(EJUSTRETURN);
|
|
}
|
|
|
|
static void
|
|
dcphy_reset(mii)
|
|
struct mii_softc *mii;
|
|
{
|
|
struct dc_softc *sc;
|
|
|
|
sc = mii->mii_pdata->mii_ifp->if_softc;
|
|
|
|
DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
DELAY(1000);
|
|
DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
|
|
return;
|
|
}
|
|
|