freebsd-skq/sys/dev/ep/if_ep_pccard.c
Warner Losh e09f49b6fa Fix the hang on card eject problem and maybe the hang on suspend
problem.

o Create new timeout routine so we don't detach the card inside a ISR
  but instead drop back to spl0 via a timeout of 0.
o Actually delete the child of the pccard device rather than just faking
  it badly.
o Fix sio, ed and ep to have pccard detach routines that are int rather
  than void.
o Fix ep and ed pccard detach routines to use if_detach rather than just
  if_down.  if_detach destroys the device, while if_down just marks it
  down.  In this incarnation of the pccard things, we map the disable
  the slot action to detach the driver, which removes the driver from the
  device tree.  When that is done, a panic would soon follow as the
  ifconfig tried to down the device.

Didn't fix:
o Should cache the pccard dev child's pointer in struct slot
o remove now unused parts of struct slot
o Any driver using softc after detach has been called.  sio's softc used
  to be statically allocated, so you could check sc->gone, but that is
  now gone.
o Didn't remove gone from softc of drivers that use the old pccard method.

Didn't test:
o ed driver changes
o sio driver changes on pccards
o suspend (no laptop or apm support on my desktop)
1999-12-01 07:38:54 +00:00

253 lines
6.6 KiB
C

/*
* Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
* 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 Herb Peyerl.
* 4. The name of Herb Peyerl may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR 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.
*
* $FreeBSD$
*/
/*
* Pccard support for 3C589 by:
* HAMADA Naoki
* nao@tom-yam.or.jp
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <machine/clock.h>
#include <dev/ep/if_epreg.h>
#include <dev/ep/if_epvar.h>
static const char *ep_pccard_identify(u_short id);
/*
* Initialize the device - called from Slot manager.
*/
static int
ep_pccard_probe(device_t dev)
{
struct ep_softc * sc = device_get_softc(dev);
struct ep_board * epb = &sc->epb;
const char * desc;
int error;
error = ep_alloc(dev);
if (error)
return error;
/*
* XXX - Certain (newer?) 3Com cards need epb->cmd_off ==
* 2. Sadly, you need to have a correct cmd_off in order to
* identify the card. So we have to hit it with both and
* cross our virtual fingers. There's got to be a better way
* to do this. jyoung@accessus.net 09/11/1999
*/
epb->cmd_off = 0;
epb->prod_id = get_e(sc, EEPROM_PROD_ID);
if ((desc = ep_pccard_identify(epb->prod_id)) == NULL) {
if (bootverbose)
device_printf(dev, "Pass 1 of 2 detection "
"failed (nonfatal)\n");
epb->cmd_off = 2;
epb->prod_id = get_e(sc, EEPROM_PROD_ID);
if ((desc = ep_pccard_identify(epb->prod_id)) == NULL) {
device_printf(dev, "Unit failed to come ready or "
"product ID unknown! (id 0x%x)\n", epb->prod_id);
ep_free(dev);
return (ENXIO);
}
}
device_set_desc(dev, desc);
ep_free(dev);
return (0);
}
static const char *
ep_pccard_identify(u_short id)
{
/* Determine device type and associated MII capabilities */
switch (id) {
case 0x6055: /* 3C556 */
return ("3Com 3C556");
case 0x4057: /* 3C574 */
return ("3Com 3C574");
case 0x4b57: /* 3C574B */
return ("3Com 3C574B, Megahertz 3CCFE574BT or "
"Fast Etherlink 3C574-TX");
case 0x9058: /* 3C589 */
return ("3Com Etherlink III 3C589");
case 0x2056: /* 3C562/3C563 */
return ("3Com 3C562D/3C563D");
}
return (NULL);
}
static int
ep_pccard_card_attach(struct ep_board *epb)
{
/* Determine device type and associated MII capabilities */
switch (epb->prod_id) {
case 0x6055: /* 3C556 */
epb->mii_trans = 1;
return (1);
case 0x4057: /* 3C574 */
epb->mii_trans = 1;
return (1);
case 0x4b57: /* 3C574B */
epb->mii_trans = 1;
return (1);
case 0x2056: /* 3C562D/3C563D */
case 0x9058: /* 3C589 */
epb->mii_trans = 0;
return (1);
}
return (0);
}
static int
ep_pccard_attach(device_t dev)
{
struct ep_softc * sc = device_get_softc(dev);
int error = 0;
if ((error = ep_alloc(dev))) {
device_printf(dev, "ep_alloc() failed! (%d)\n", error);
goto bad;
}
sc->epb.cmd_off = 0;
sc->epb.prod_id = get_e(sc, EEPROM_PROD_ID);
if (!ep_pccard_card_attach(&sc->epb)) {
sc->epb.cmd_off = 2;
sc->epb.prod_id = get_e(sc, EEPROM_PROD_ID);
sc->epb.res_cfg = get_e(sc, EEPROM_RESOURCE_CFG);
if (!ep_pccard_card_attach(&sc->epb)) {
device_printf(dev,
"Probe found ID, attach failed so ignore card!\n");
error = ENXIO;
goto bad;
}
}
/* ROM size = 0, ROM base = 0 */
/* For now, ignore AUTO SELECT feature of 3C589B and later. */
outw(BASE + EP_W0_ADDRESS_CFG, get_e(sc, EEPROM_ADDR_CFG) & 0xc000);
/* Fake IRQ must be 3 */
outw(BASE + EP_W0_RESOURCE_CFG, (sc->epb.res_cfg & 0x0fff) | 0x3000);
outw(BASE + EP_W0_PRODUCT_ID, sc->epb.prod_id);
if (sc->epb.mii_trans) {
/*
* turn on the MII transciever
*/
GO_WINDOW(3);
outw(BASE + EP_W3_OPTIONS, 0x8040);
DELAY(1000);
outw(BASE + EP_W3_OPTIONS, 0xc040);
outw(BASE + EP_COMMAND, RX_RESET);
outw(BASE + EP_COMMAND, TX_RESET);
while (inw(BASE + EP_STATUS) & S_COMMAND_IN_PROGRESS);
DELAY(1000);
outw(BASE + EP_W3_OPTIONS, 0x8040);
} else {
ep_get_media(sc);
}
if ((error = ep_attach(sc))) {
device_printf(dev, "ep_attach() failed! (%d)\n", error);
goto bad;
}
if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, ep_intr,
sc, &sc->ep_intrhand))) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
goto bad;
}
return (0);
bad:
ep_free(dev);
return (error);
}
static int
ep_pccard_detach(device_t dev)
{
struct ep_softc *sc = device_get_softc(dev);
printf("detach\n");
if (sc->gone) {
device_printf(dev, "already unloaded\n");
return (0);
}
sc->arpcom.ac_if.if_flags &= ~IFF_RUNNING;
if_detach(&sc->arpcom.ac_if);
sc->gone = 1;
bus_teardown_intr(dev, sc->irq, sc->ep_intrhand);
ep_free(dev);
device_printf(dev, "unload\n");
return (0);
}
static device_method_t ep_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ep_pccard_probe),
DEVMETHOD(device_attach, ep_pccard_attach),
DEVMETHOD(device_detach, ep_pccard_detach),
{ 0, 0 }
};
static driver_t ep_pccard_driver = {
"ep",
ep_pccard_methods,
sizeof(struct ep_softc),
};
extern devclass_t ep_devclass;
DRIVER_MODULE(ep, pccard, ep_pccard_driver, ep_devclass, 0, 0);