1b97a6c6a9
ensues when ifconfig tries to load if_ed.ko when it's already in the kernel.
276 lines
7.3 KiB
C
276 lines
7.3 KiB
C
/*
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* Copyright (c) 1995, David Greenman
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/kernel.h>
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#include <sys/conf.h>
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#include <sys/uio.h>
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#include <sys/select.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_mib.h>
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#include <dev/ed/if_edreg.h>
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#include <dev/ed/if_edvar.h>
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#include <dev/pccard/pccardvar.h>
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#include "card_if.h"
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/*
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* PC-Card (PCMCIA) specific code.
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*/
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static int ed_pccard_probe(device_t);
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static int ed_pccard_attach(device_t);
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static int ed_pccard_detach(device_t);
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static void ax88190_geteprom(struct ed_softc *);
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static int ed_pccard_memwrite(device_t dev, off_t offset, u_char byte);
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static int linksys;
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static device_method_t ed_pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ed_pccard_probe),
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DEVMETHOD(device_attach, ed_pccard_attach),
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DEVMETHOD(device_detach, ed_pccard_detach),
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{ 0, 0 }
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};
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static driver_t ed_pccard_driver = {
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"ed",
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ed_pccard_methods,
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sizeof(struct ed_softc)
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};
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static devclass_t ed_pccard_devclass;
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DRIVER_MODULE(if_ed, pccard, ed_pccard_driver, ed_pccard_devclass, 0, 0);
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/*
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* ed_pccard_detach - unload the driver and clear the table.
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* XXX TODO:
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* This is usually called when the card is ejected, but
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* can be caused by a modunload of a controller driver.
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* The idea is to reset the driver's view of the device
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* and ensure that any driver entry points such as
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* read and write do not hang.
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*/
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static int
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ed_pccard_detach(device_t dev)
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{
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struct ed_softc *sc = device_get_softc(dev);
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struct ifnet *ifp = &sc->arpcom.ac_if;
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if (sc->gone) {
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device_printf(dev, "already unloaded\n");
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return (0);
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}
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ed_stop(sc);
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ifp->if_flags &= ~IFF_RUNNING;
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ether_ifdetach(ifp, ETHER_BPF_SUPPORTED);
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sc->gone = 1;
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bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
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ed_release_resources(dev);
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return (0);
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}
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/*
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* Probe framework for pccards. Replicates the standard framework,
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* minus the pccard driver registration and ignores the ether address
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* supplied (from the CIS), relying on the probe to find it instead.
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*/
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static int
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ed_pccard_probe(device_t dev)
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{
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struct ed_softc *sc = device_get_softc(dev);
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int flags = device_get_flags(dev);
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int error;
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if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_AX88190) {
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/* Special setup for AX88190 */
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int iobase;
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/* Allocate the port resource during setup. */
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error = ed_alloc_port(dev, 0, ED_NOVELL_IO_PORTS);
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if (error)
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return (error);
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sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
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sc->nic_offset = ED_NOVELL_NIC_OFFSET;
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sc->chip_type = ED_CHIP_TYPE_AX88190;
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/*
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* Set Attribute Memory IOBASE Register
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*/
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iobase = rman_get_start(sc->port_res);
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ed_pccard_memwrite(dev, ED_AX88190_IOBASE0,
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iobase & 0xff);
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ed_pccard_memwrite(dev, ED_AX88190_IOBASE1,
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(iobase >> 8) & 0xff);
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ax88190_geteprom(sc);
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ed_release_resources(dev);
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}
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error = ed_probe_Novell(dev, 0, flags);
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if (error == 0)
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goto end;
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ed_release_resources(dev);
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error = ed_probe_WD80x3(dev, 0, flags);
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if (error == 0)
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goto end;
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ed_release_resources(dev);
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goto end2;
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end:
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linksys = ed_get_Linksys(dev);
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end2:
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if (error == 0)
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error = ed_alloc_irq(dev, 0, 0);
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ed_release_resources(dev);
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return (error);
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}
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static int
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ed_pccard_attach(device_t dev)
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{
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struct ed_softc *sc = device_get_softc(dev);
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int flags = device_get_flags(dev);
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int error;
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int i;
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u_char sum;
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u_char ether_addr[ETHER_ADDR_LEN];
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if (sc->port_used > 0)
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ed_alloc_port(dev, sc->port_rid, sc->port_used);
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if (sc->mem_used)
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ed_alloc_memory(dev, sc->mem_rid, sc->mem_used);
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ed_alloc_irq(dev, sc->irq_rid, 0);
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error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
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edintr, sc, &sc->irq_handle);
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if (error) {
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printf("setup intr failed %d \n", error);
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ed_release_resources(dev);
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return (error);
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}
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if (linksys == 0) {
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pccard_get_ether(dev, ether_addr);
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for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
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sum |= ether_addr[i];
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if (sum)
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bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
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}
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error = ed_attach(sc, device_get_unit(dev), flags);
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return (error);
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}
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static void
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ax88190_geteprom(struct ed_softc *sc)
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{
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int prom[16],i;
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u_char tmp;
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struct {
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unsigned char offset, value;
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} pg_seq[] = {
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{ED_P0_CR, ED_CR_RD2|ED_CR_STP}, /* Select Page0 */
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{ED_P0_DCR, 0x01},
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{ED_P0_RBCR0, 0x00}, /* Clear the count regs. */
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{ED_P0_RBCR1, 0x00},
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{ED_P0_IMR, 0x00}, /* Mask completion irq. */
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{ED_P0_ISR, 0xff},
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{ED_P0_RCR, ED_RCR_MON | ED_RCR_INTT}, /* Set To Monitor */
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{ED_P0_TCR, ED_TCR_LB0}, /* loopback mode. */
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{ED_P0_RBCR0, 32},
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{ED_P0_RBCR1, 0x00},
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{ED_P0_RSAR0, 0x00},
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{ED_P0_RSAR1, 0x04},
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{ED_P0_CR ,ED_CR_RD0 | ED_CR_STA},
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};
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/* Reset Card */
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tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
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ed_asic_outb(sc, ED_NOVELL_RESET, tmp);
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DELAY(5000);
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ed_asic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
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DELAY(5000);
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/* Card Settings */
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for (i = 0; i < sizeof(pg_seq) / sizeof(pg_seq[0]); i++)
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ed_nic_outb(sc, pg_seq[i].offset, pg_seq[i].value);
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/* Get Data */
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for (i = 0; i < 16; i++)
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prom[i] = ed_asic_inb(sc, 0);
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/*
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for (i = 0; i < 16; i++)
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printf("ax88190 eprom [%02d] %02x %02x\n",
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i,prom[i] & 0xff,prom[i] >> 8);
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*/
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sc->arpcom.ac_enaddr[0] = prom[0] & 0xff;
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sc->arpcom.ac_enaddr[1] = prom[0] >> 8;
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sc->arpcom.ac_enaddr[2] = prom[1] & 0xff;
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sc->arpcom.ac_enaddr[3] = prom[1] >> 8;
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sc->arpcom.ac_enaddr[4] = prom[2] & 0xff;
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sc->arpcom.ac_enaddr[5] = prom[2] >> 8;
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}
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static int
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ed_pccard_memwrite(device_t dev, off_t offset, u_char byte)
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{
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int cis_rid;
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struct resource *cis;
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cis_rid = 0;
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cis = bus_alloc_resource(dev, SYS_RES_MEMORY, &cis_rid, 0, ~0, 4 << 10, RF_ACTIVE | RF_SHAREABLE);
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if (cis == NULL)
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return (ENXIO);
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CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY, cis_rid, PCCARD_A_MEM_ATTR);
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bus_space_write_1(rman_get_bustag(cis), rman_get_bushandle(cis), offset, byte);
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bus_release_resource(dev, SYS_RES_MEMORY, cis_rid, cis);
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return (0);
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}
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